Muqaddimah
Encyclopedia
The Muqaddimah also known as the Muqaddimah of Ibn Khaldun or the Prolegomena (Greek
Greek language
Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

: Προλεγόμενα), is a book written by the Maghreb
Maghreb
The Maghreb is the region of Northwest Africa, west of Egypt. It includes five countries: Morocco, Algeria, Tunisia, Libya, and Mauritania and the disputed territory of Western Sahara...

ian Muslim
Muslim
A Muslim, also spelled Moslem, is an adherent of Islam, a monotheistic, Abrahamic religion based on the Quran, which Muslims consider the verbatim word of God as revealed to prophet Muhammad. "Muslim" is the Arabic term for "submitter" .Muslims believe that God is one and incomparable...

 historian Ibn Khaldun
Ibn Khaldun
Ibn Khaldūn or Ibn Khaldoun was an Arab Tunisian historiographer and historian who is often viewed as one of the forerunners of modern historiography, sociology and economics...

 in 1377 which records an early view of universal history
Universal history
Universal history is basic to the Western tradition of historiography, especially the Abrahamic wellspring of that tradition. Simply stated, universal history is the presentation of the history of humankind as a whole, as a coherent unit.-Ancient authors:...

. Some modern thinkers view it as the first work dealing with the philosophy of history
Philosophy of history
The term philosophy of history refers to the theoretical aspect of history, in two senses. It is customary to distinguish critical philosophy of history from speculative philosophy of history...

 or the social sciences
Social sciences
Social science is the field of study concerned with society. "Social science" is commonly used as an umbrella term to refer to a plurality of fields outside of the natural sciences usually exclusive of the administrative or managerial sciences...

 of sociology
Sociology
Sociology is the study of society. It is a social science—a term with which it is sometimes synonymous—which uses various methods of empirical investigation and critical analysis to develop a body of knowledge about human social activity...

, demography
Demography
Demography is the statistical study of human population. It can be a very general science that can be applied to any kind of dynamic human population, that is, one that changes over time or space...

, historiography
Historiography
Historiography refers either to the study of the history and methodology of history as a discipline, or to a body of historical work on a specialized topic...

 or cultural history
Cultural history
The term cultural history refers both to an academic discipline and to its subject matter.Cultural history, as a discipline, at least in its common definition since the 1970s, often combines the approaches of anthropology and history to look at popular cultural traditions and cultural...

. and economics
Economics
Economics is the social science that analyzes the production, distribution, and consumption of goods and services. The term economics comes from the Ancient Greek from + , hence "rules of the house"...

, The Muqaddimah also deals with Islamic theology
Islamic theology
Islamic theology is a branch of Islamic studies regarding the beliefs associated with the Islamic faith. Any religious belief system, or creed, can be considered an example of aqidah. However, this term has taken a significant technical usage in Islamic history and theology, denoting those...

, political theory
Political philosophy
Political philosophy is the study of such topics as liberty, justice, property, rights, law, and the enforcement of a legal code by authority: what they are, why they are needed, what, if anything, makes a government legitimate, what rights and freedoms it should protect and why, what form it...

 and the natural science
Natural science
The natural sciences are branches of science that seek to elucidate the rules that govern the natural world by using empirical and scientific methods...

s of biology
Biology
Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines...

 and chemistry
Chemistry
Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds....

. Ibn Khaldun wrote the work in 1377 as the preface or first book of his planned world history
History
History is the discovery, collection, organization, and presentation of information about past events. History can also mean the period of time after writing was invented. Scholars who write about history are called historians...

, the Kitab al-Ibar (lit. Book of Advice), but already in his lifetime it became regarded as an independent work.

Content

Ibn Khaldun starts the Muqaddimah with a thorough criticism of the mistakes regularly committed by his fellow historian
Historian
A historian is a person who studies and writes about the past and is regarded as an authority on it. Historians are concerned with the continuous, methodical narrative and research of past events as relating to the human race; as well as the study of all history in time. If the individual is...

s and the difficulties which await the historian in his work. He notes seven critical issues:


"All records, by their very nature, are liable to error...
  1. ...Partisanship towards a creed or opinion...
  2. ...Over-confidence in one's sources...
  3. ...The failure to understand what is intended...
  4. ...A mistaken belief in the truth...
  5. ...The inability to place an event in its real context
  6. ...The common desire to gain favor of those of high ranks, by praising them, by spreading their fame...
  7. ...The most important is the ignorance of the laws governing the transformation of human society."



Against the seventh point (the ignorance of social laws) Ibn Khaldun lays out his theory of human society
Society
A society, or a human society, is a group of people related to each other through persistent relations, or a large social grouping sharing the same geographical or virtual territory, subject to the same political authority and dominant cultural expectations...

 in the Muqaddimah.

Sati' al-Husri
Sati' al-Husri
Sāti` al-Husrī was an Ottoman and Syrian writer, educationalist and an influential Arab nationalist thinker in the 20th century.-Early life:...

 suggested that Ibn Khaldun's Muqaddimah is essentially a sociological work, sketching over its six books a general sociology
Sociology
Sociology is the study of society. It is a social science—a term with which it is sometimes synonymous—which uses various methods of empirical investigation and critical analysis to develop a body of knowledge about human social activity...

; a sociology of politics
Political sociology
Contemporary political sociology involves much more than the study of the relations between state and society . Where a typical research question in political sociology might have been: "Why do so few American citizens choose to vote?" or even, "What difference does it make if women get elected?" ...

; a sociology of urban life
Urban sociology
Urban sociology is the sociological study of social life and human interaction in metropolitan areas. It is a normative discipline of sociology seeking to study the structures, processes, changes and problems of an urban area and by doing so providing inputs for planning and policy making. Like...

; a sociology of economics
Economic sociology
Economic sociology studies both the social effects and the social causes of various economic phenomena. The field can be broadly divided into a classical period and a contemporary one. The classical period was concerned particularly with modernity and its constituent aspects...

; and a sociology of knowledge
Sociology of knowledge
The Sociology of knowledge is the study of the relationship between human thought and the social context within which it arises, and of the effects prevailing ideas have on societies...

.

Scientific method

Ibn Khaldun
Ibn Khaldun
Ibn Khaldūn or Ibn Khaldoun was an Arab Tunisian historiographer and historian who is often viewed as one of the forerunners of modern historiography, sociology and economics...

 often criticized "idle superstition and uncritical acceptance of historical data." As a result, he introduced the scientific method
Scientific method
Scientific method refers to a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. To be termed scientific, a method of inquiry must be based on gathering empirical and measurable evidence subject to specific principles of...

 to the social sciences
Social sciences
Social science is the field of study concerned with society. "Social science" is commonly used as an umbrella term to refer to a plurality of fields outside of the natural sciences usually exclusive of the administrative or managerial sciences...

, which was considered something "new to his age", and he often referred to it as his "new science" and developed his own new terminology for it.

His historical method
Historical method
Historical method comprises the techniques and guidelines by which historians use primary sources and other evidence to research and then to write histories in the form of accounts of the past. The question of the nature, and even the possibility, of a sound historical method is raised in the...

 also laid the groundwork for the observation of the role of state
Sovereign state
A sovereign state, or simply, state, is a state with a defined territory on which it exercises internal and external sovereignty, a permanent population, a government, and the capacity to enter into relations with other sovereign states. It is also normally understood to be a state which is neither...

, communication
Communication
Communication is the activity of conveying meaningful information. Communication requires a sender, a message, and an intended recipient, although the receiver need not be present or aware of the sender's intent to communicate at the time of communication; thus communication can occur across vast...

, propaganda
Propaganda
Propaganda is a form of communication that is aimed at influencing the attitude of a community toward some cause or position so as to benefit oneself or one's group....

 and systematic bias in history, leading to his development of historiography
Historiography
Historiography refers either to the study of the history and methodology of history as a discipline, or to a body of historical work on a specialized topic...

.

'Asabiyyah

The concept of "'asabiyyah
Asabiyyah
`Asabiyya or asabiyah refers to social solidarity with an emphasis on unity, group consciousness, and social cohesion, originally in a context of "tribalism" and "clanism", but sometimes used for modern nationalism as well, resembling also communitarism...

" (Arabic
Arabic language
Arabic is a name applied to the descendants of the Classical Arabic language of the 6th century AD, used most prominently in the Quran, the Islamic Holy Book...

: 'tribalism', 'clanism', 'communitarism' or in a modern context 'nationalism') is one of the most well-known aspects of the Muqaddimah. Ibn Khaldun uses the term Asabiyyah to describe the bond of cohesion among humans in a group forming community
Community
The term community has two distinct meanings:*a group of interacting people, possibly living in close proximity, and often refers to a group that shares some common values, and is attributed with social cohesion within a shared geographical location, generally in social units larger than a household...

. The bond, Asabiyyah, exists at any level of civilization, from nomadic society to states and empires. Asabiyyah is most strong in the nomadic phase, and decreases as civilization advances. As this Asabiyyah declines, another more compelling Asabiyyah may take its place; thus, civilizations rise and fall, and history describes these cycles of Asabiyyah as they play out.

Ibn Khaldun argues that each dynasty has within itself the seeds of its own downfall. He explains that ruling houses tend to emerge on the peripheries of great empires and use the unity presented by those areas to their advantage in order to bring about a change in leadership. As the new rulers establish themselves at the center of their empire, they become increasingly lax and more concerned with maintaining their lifestyles. Thus, a new dynasty can emerge at the periphery of their control and effect a change in leadership, beginning the cycle anew.

Ibn Khaldun's model is an instinctive one, not requiring a conceptual social contract
Social contract
The social contract is an intellectual device intended to explain the appropriate relationship between individuals and their governments. Social contract arguments assert that individuals unite into political societies by a process of mutual consent, agreeing to abide by common rules and accept...

 present in classical republicanism
Classical republicanism
Classical republicanism is a form of republicanism developed in the Renaissance inspired by the governmental forms and writings of classical antiquity. The earliest examples of the school were classical writers such as Aristotle, Polybius, and Cicero...

.

Conflict theory

Ibn Khaldun conceived both a central social conflict
Social conflict
Social conflict is the struggle for agency or power in society.Social conflict or group conflict occurs when two or more actors oppose each other in social interaction,reciprocally exerting social power in an effort to attain scarce or incompatible goals and prevent the opponent from attaining them...

 ("town" versus "desert") as well as a theory (using the concept of a "generation") of the necessary loss of power of city conquerors coming from the desert.

Similarities to modern sociology

The sociology of the Muqaddimah is more similar to the theories developed by Hegel or Marx in emphasizing dialectic
Dialectic
Dialectic is a method of argument for resolving disagreement that has been central to Indic and European philosophy since antiquity. The word dialectic originated in Ancient Greece, and was made popular by Plato in the Socratic dialogues...

 or feedback loops, or systems theory
Systems theory
Systems theory is the transdisciplinary study of systems in general, with the goal of elucidating principles that can be applied to all types of systems at all nesting levels in all fields of research...

 as applied to fields such as corporate social responsibility
Corporate social responsibility
Corporate social responsibility is a form of corporate self-regulation integrated into a business model...

, than to the theories of Durkheim and others who emphasized structures. There is a remarkable similarity between modern economic ideas and some ideas developed by Ibn Khaldun.

Economics

See also Islamic economic jurisprudence

When civilization [population] increases, the available labor again increases. In turn, luxury again increases in correspondence with the increasing profit, and the customs and needs of luxury increase. Crafts are created to obtain luxury products. The value realized from them increases, and, as a result, profits are again multiplied in the town. Production there is thriving even more than before. And so it goes with the second and third increase. All the additional labor serves luxury and wealth, in contrast to the original labor that served the necessity of life.
Ibn Khaldun
Ibn Khaldun
Ibn Khaldūn or Ibn Khaldoun was an Arab Tunisian historiographer and historian who is often viewed as one of the forerunners of modern historiography, sociology and economics...

 on economic growth
Economic growth
In economics, economic growth is defined as the increasing capacity of the economy to satisfy the wants of goods and services of the members of society. Economic growth is enabled by increases in productivity, which lowers the inputs for a given amount of output. Lowered costs increase demand...


Businesses owned by responsible and organized merchants shall eventually surpass those owned by wealthy rulers.
Ibn Khaldun
Ibn Khaldun
Ibn Khaldūn or Ibn Khaldoun was an Arab Tunisian historiographer and historian who is often viewed as one of the forerunners of modern historiography, sociology and economics...

 on economic growth
Economic growth
In economics, economic growth is defined as the increasing capacity of the economy to satisfy the wants of goods and services of the members of society. Economic growth is enabled by increases in productivity, which lowers the inputs for a given amount of output. Lowered costs increase demand...

 and the ideals of Plato
Plato
Plato , was a Classical Greek philosopher, mathematician, student of Socrates, writer of philosophical dialogues, and founder of the Academy in Athens, the first institution of higher learning in the Western world. Along with his mentor, Socrates, and his student, Aristotle, Plato helped to lay the...



Ibn Khaldun wrote on economic and political theory in the Muqaddimah, relating his thoughts on asabiyya to the division of labor: the greater the social cohesion, the more complex the division may be, the greater the economic growth
Economic growth
In economics, economic growth is defined as the increasing capacity of the economy to satisfy the wants of goods and services of the members of society. Economic growth is enabled by increases in productivity, which lowers the inputs for a given amount of output. Lowered costs increase demand...

.

Ibn Khaldun noted that growth and development positively stimulate both supply and demand, and that the forces of supply and demand are what determine the prices of goods. He also noted macroeconomic forces of population growth, human capital
Human capital
Human capitalis the stock of competencies, knowledge and personality attributes embodied in the ability to perform labor so as to produce economic value. It is the attributes gained by a worker through education and experience...

 development, and technological developments effects on development. Ibn Khaldun held that population growth was a function of wealth.

Ibn Khaldun understood that money served as a standard of value, a medium of exchange, and a preserver of value, though he did not realize that the value of gold and silver changed based on the forces of supply and demand. Ibn Khaldun also introduced the labor theory of value
Labor theory of value
The labor theories of value are heterodox economic theories of value which argue that the value of a commodity is related to the labor needed to produce or obtain that commodity. The concept is most often associated with Marxian economics...

. He described labor as the source of value, necessary for all earnings and capital accumulation, obvious in the case of craft. He argued that even if earning “results from something other than a craft, the value of the resulting profit and acquired (capital) must (also) include the value of the labor by which it was obtained. Without labor, it would not have been acquired.”

His theory of asabiyyah has often been compared to modern Keynesian economics
Keynesian economics
Keynesian economics is a school of macroeconomic thought based on the ideas of 20th-century English economist John Maynard Keynes.Keynesian economics argues that private sector decisions sometimes lead to inefficient macroeconomic outcomes and, therefore, advocates active policy responses by the...

, with Ibn Khaldun's theory clearly containing the concept of the multiplier. A crucial difference, however, is that whereas for John Maynard Keynes
John Maynard Keynes
John Maynard Keynes, Baron Keynes of Tilton, CB FBA , was a British economist whose ideas have profoundly affected the theory and practice of modern macroeconomics, as well as the economic policies of governments...

 it is the middle class
Middle class
The middle class is any class of people in the middle of a societal hierarchy. In Weberian socio-economic terms, the middle class is the broad group of people in contemporary society who fall socio-economically between the working class and upper class....

's greater propensity to save that is to blame for economic depression
Depression (economics)
In economics, a depression is a sustained, long-term downturn in economic activity in one or more economies. It is a more severe downturn than a recession, which is seen by some economists as part of the modern business cycle....

, for Ibn Khaldun it is the governmental propensity to save at times when investment
Investment
Investment has different meanings in finance and economics. Finance investment is putting money into something with the expectation of gain, that upon thorough analysis, has a high degree of security for the principal amount, as well as security of return, within an expected period of time...

 opportunities do not take up the slack which leads to aggregate demand
Aggregate demand
In macroeconomics, aggregate demand is the total demand for final goods and services in the economy at a given time and price level. It is the amount of goods and services in the economy that will be purchased at all possible price levels. This is the demand for the gross domestic product of a...

.

Another modern economic theory anticipated by Ibn Khaldun is supply-side economics
Supply-side economics
Supply-side economics is a school of macroeconomic thought that argues that economic growth can be most effectively created by lowering barriers for people to produce goods and services, such as lowering income tax and capital gains tax rates, and by allowing greater flexibility by reducing...

. He "argued that high tax
Tax
To tax is to impose a financial charge or other levy upon a taxpayer by a state or the functional equivalent of a state such that failure to pay is punishable by law. Taxes are also imposed by many subnational entities...

es were often a factor in causing empires to collapse, with the result that lower revenue was collected from high rates." He wrote:

Laffer Curve

Ibn Khaldun introduced the concept now popularly known as the Laffer Curve
Laffer curve
In economics, the Laffer curve is a theoretical representation of the relationship between government revenue raised by taxation and all possible rates of taxation. It is used to illustrate the concept of taxable income elasticity . The curve is constructed by thought experiment...

, that increases in tax rates initially increase tax revenues, but eventually the increases in tax rates cause a decrease in tax revenues. This occurs as too high a tax rate discourages producers in the economy.

Ibn Khaldun used a dialectic
Dialectic
Dialectic is a method of argument for resolving disagreement that has been central to Indic and European philosophy since antiquity. The word dialectic originated in Ancient Greece, and was made popular by Plato in the Socratic dialogues...

 approach to describe the sociological implications of tax choice (which now forms a part of economics
Economics
Economics is the social science that analyzes the production, distribution, and consumption of goods and services. The term economics comes from the Ancient Greek from + , hence "rules of the house"...

 theory):
This analysis is very similar to the modern economic concept known as the Laffer Curve. Laffer does not claim to have invented the concept himself, noting that the idea was present in the work of Ibn Khaldun and, more recently, John Maynard Keynes
John Maynard Keynes
John Maynard Keynes, Baron Keynes of Tilton, CB FBA , was a British economist whose ideas have profoundly affected the theory and practice of modern macroeconomics, as well as the economic policies of governments...

.

The Khaldun-Laffer curve has also been used in Solid State Physics and Chemistry to interpret the dependence of certain macroscopic properties of solids on hydrostatic pressure (e.g. dynamical effective charge, polarizability) see M.Cardona Arxiv:cond-mat/0204606v1, April 29, 2002

Historiography

The Muqaddimah is also held to be a foundational work for the schools of historiography
Historiography
Historiography refers either to the study of the history and methodology of history as a discipline, or to a body of historical work on a specialized topic...

, cultural history
Cultural history
The term cultural history refers both to an academic discipline and to its subject matter.Cultural history, as a discipline, at least in its common definition since the 1970s, often combines the approaches of anthropology and history to look at popular cultural traditions and cultural...

, and the philosophy of history
Philosophy of history
The term philosophy of history refers to the theoretical aspect of history, in two senses. It is customary to distinguish critical philosophy of history from speculative philosophy of history...

. The Muqaddimah also laid the groundwork for the observation of the role of state
Sovereign state
A sovereign state, or simply, state, is a state with a defined territory on which it exercises internal and external sovereignty, a permanent population, a government, and the capacity to enter into relations with other sovereign states. It is also normally understood to be a state which is neither...

, communication
Communication
Communication is the activity of conveying meaningful information. Communication requires a sender, a message, and an intended recipient, although the receiver need not be present or aware of the sender's intent to communicate at the time of communication; thus communication can occur across vast...

, propaganda
Propaganda
Propaganda is a form of communication that is aimed at influencing the attitude of a community toward some cause or position so as to benefit oneself or one's group....

 and systematic bias in history.

Franz Rosenthal
Franz Rosenthal
Franz Rosenthal was the Louis M. Rabinowitz professor of Semitic languages at Yale from 1956 to 1967 and Sterling Professor Emeritus of Arabic, scholar of Arabic literature and Islam at Yale from 1967 to 1985....

 wrote in the History of Muslim Historiography:

Historical method

In the Muqaddimah, Ibn Khaldun warned of seven mistakes that he thought that historians regularly committed. In this criticism, he approached the past as strange and in need of interpretation. The originality of Ibn Khaldun was to claim that the cultural difference of another age must govern the evaluation of relevant historical material, to distinguish the principles according to which it might be possible to attempt the evaluation, and lastly, to feel the need for experience, in addition to rational principles, in order to assess a culture of the past. Ibn Khaldun often criticized "idle superstition
Superstition
Superstition is a belief in supernatural causality: that one event leads to the cause of another without any process in the physical world linking the two events....

 and uncritical acceptance of historical data." As a result, he introduced a scientific method
Scientific method
Scientific method refers to a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. To be termed scientific, a method of inquiry must be based on gathering empirical and measurable evidence subject to specific principles of...

 to the study of history, which was considered something "new to his age", and he often referred to it as his "new science", now associated with historiography
Historiography
Historiography refers either to the study of the history and methodology of history as a discipline, or to a body of historical work on a specialized topic...

. His historical method
Historical method
Historical method comprises the techniques and guidelines by which historians use primary sources and other evidence to research and then to write histories in the form of accounts of the past. The question of the nature, and even the possibility, of a sound historical method is raised in the...

 also laid the groundwork for the observation of the role of state
Sovereign state
A sovereign state, or simply, state, is a state with a defined territory on which it exercises internal and external sovereignty, a permanent population, a government, and the capacity to enter into relations with other sovereign states. It is also normally understood to be a state which is neither...

, communication
Communication
Communication is the activity of conveying meaningful information. Communication requires a sender, a message, and an intended recipient, although the receiver need not be present or aware of the sender's intent to communicate at the time of communication; thus communication can occur across vast...

, propaganda
Propaganda
Propaganda is a form of communication that is aimed at influencing the attitude of a community toward some cause or position so as to benefit oneself or one's group....

 and systematic bias in history, and he is thus considered to be the "father of historiography" or the "father of the philosophy of history
Philosophy of history
The term philosophy of history refers to the theoretical aspect of history, in two senses. It is customary to distinguish critical philosophy of history from speculative philosophy of history...

".

Ibn Khaldun' makes the following comments on his scientific historical method in his Muqaddimah:
  1. "History is a science"
  2. "History has a content and the historian should account for it"
  3. "The historian should account for the elements that gather to make the human history"
  4. "He should also work according to the laws of history"
  5. "History is a philosophical science"
  6. "History is composed of news about the days, states and the previous centuries. It is a theory, an analysis and justification about the creatures and their principles, and a science of how the incidents happen and their reasons"
  7. "Myths have nothing to do with history and should be refuted"
  8. "To build strong historical records, the historian should rely on necessary rules for the truth comparison"

Philosophy of history

Ibn Khaldun is considered a pioneer of the philosophy of history
Philosophy of history
The term philosophy of history refers to the theoretical aspect of history, in two senses. It is customary to distinguish critical philosophy of history from speculative philosophy of history...

. Franz Rosenthal
Franz Rosenthal
Franz Rosenthal was the Louis M. Rabinowitz professor of Semitic languages at Yale from 1956 to 1967 and Sterling Professor Emeritus of Arabic, scholar of Arabic literature and Islam at Yale from 1967 to 1985....

 writes on the Muqaddimah:

Systematic bias

The Muqaddimah emphasized the role of systemic bias
Systemic bias
Systemic bias is the inherent tendency of a process to favor particular outcomes. The term is a neologism that generally refers to human systems; the analogous problem in non-human systems is often called systematic bias, and leads to systematic error in measurements or estimates.-Bias in...

 in affecting the standard of evidence
Historical method
Historical method comprises the techniques and guidelines by which historians use primary sources and other evidence to research and then to write histories in the form of accounts of the past. The question of the nature, and even the possibility, of a sound historical method is raised in the...

. Khaldun was quite concerned with the effect of raising the standard of evidence when confronted with uncomfortable claims, and relaxing it when given claims that seemed reasonable or comfortable. He was a jurist, and sometimes participated reluctantly in rulings that he felt were coerced, based on arguments he didn't respect. Besides al-Maqrizi
Al-Maqrizi
Taqi al-Din Ahmad ibn 'Ali ibn 'Abd al-Qadir ibn Muhammad al-Maqrizi ; Arabic: , was an Egyptian historian more commonly known as al-Maqrizi or Makrizi...

 (1364–1442), Ibn Khaldun had few successors in his thinking about history until Arnold J. Toynbee
Arnold J. Toynbee
Arnold Joseph Toynbee CH was a British historian whose twelve-volume analysis of the rise and fall of civilizations, A Study of History, 1934–1961, was a synthesis of world history, a metahistory based on universal rhythms of rise, flowering and decline, which examined history from a global...

, a 20th century British historian.

Ibn Khaldun also examines why, throughout history, it has been common for historians to sensationalize
Sensationalism
Sensationalism is a type of editorial bias in mass media in which events and topics in news stories and pieces are over-hyped to increase viewership or readership numbers...

 historical events and, in particular, exaggerate numerical figures:

Military history

The Muqaddimah is the earliest known work to critically examine military history
Military history
Military history is a humanities discipline within the scope of general historical recording of armed conflict in the history of humanity, and its impact on the societies, their cultures, economies and changing intra and international relationships....

. It criticizes certain accounts of historical battles that appear to be exaggerated, and takes military logistics
Military logistics
Military logistics is the discipline of planning and carrying out the movement and maintenance of military forces. In its most comprehensive sense, it is those aspects or military operations that deal with:...

 into account when questioning the sizes of historical armies reported in earlier sources. In the Introduction to the Muqaddimah, Ibn Khaldun directs this criticism towards to famous historians such as Al-Masudi
Al-Masudi
Abu al-Hasan Ali ibn al-Husayn ibn Ali al-Mas'udi , was an Arab historian and geographer, known as the "Herodotus of the Arabs." Al-Masudi was one of the first to combine history and scientific geography in a large-scale work, Muruj adh-dhahab...

, who is today regarded as the "Herodotus
Herodotus
Herodotus was an ancient Greek historian who was born in Halicarnassus, Caria and lived in the 5th century BC . He has been called the "Father of History", and was the first historian known to collect his materials systematically, test their accuracy to a certain extent and arrange them in a...

 of the Arabs" and who Ibn Khaldun himself regarded as one of the most famous historians up until his time.

As an example, Ibn Khaldun notes that Al-Masudi and other historians reported that Moses
Moses
Moses was, according to the Hebrew Bible and Qur'an, a religious leader, lawgiver and prophet, to whom the authorship of the Torah is traditionally attributed...

 counted the Israelite army as 600,000 or more soldiers. Ibn Khaldun criticizes Al-Masudi for failing to take into account certain logistics
Logistics
Logistics is the management of the flow of goods between the point of origin and the point of destination in order to meet the requirements of customers or corporations. Logistics involves the integration of information, transportation, inventory, warehousing, material handling, and packaging, and...

, questioning whether Egypt and Syria could have possibly held such a large number of soldiers, or whether an army of that size would be able to march or fight as a unit. He notes that the whole available territory would have been too small for such a large army, and argues that if "it were in battle formation, it would extend" several times "beyond the field of vision
Field of view
The field of view is the extent of the observable world that is seen at any given moment....

." He questions how two such parties could "fight with each other, or one battle formation gain the upper hand when one flank
Flanking maneuver
In military tactics, a flanking maneuver, also called a flank attack, is an attack on the sides of an opposing force. If a flanking maneuver succeeds, the opposing force would be surrounded from two or more directions, which significantly reduces the maneuverability of the outflanked force and its...

 does not know what the other flank is doing," and that a co-ordinated battle movement in such a large group "would hardly be possible." He argues that the "situation in the present day testifies to the correctness of this statement" since the "past resembles the future more than one drop of water another." He then compares it to the Persian Sassanid Empire
Sassanid Empire
The Sassanid Empire , known to its inhabitants as Ērānshahr and Ērān in Middle Persian and resulting in the New Persian terms Iranshahr and Iran , was the last pre-Islamic Persian Empire, ruled by the Sasanian Dynasty from 224 to 651...

, noting that it was far more vast than the Israelite Kingdom and yet the size of the Sassanid army
Sassanid army
The birth of the Sassanid army dates back to the rise of Ardashir I , the founder of the Sassanid dynasty, to the throne. Ardashir aimed at the revival of the Persian Empire, and to further this aim, he reformed the military by forming a standing army which was under his personal command and whose...

 at the Battle of al-Qādisiyyah
Battle of al-Qadisiyyah
The Battle of al-Qādisiyyah was fought in 636; it was the decisive engagement between the Arab muslim army and the Sassanid Persian army during the first period of Muslim expansion. It resulted in the Islamic conquest of Persia, and was key to the conquest of Iraq...

 amounted to 120,000 troops at most (citing the 8th-century historian Sayf ibn Umar). The Muqaddimah states that if the Israelites really did have such a large army, the extent of their empire would have been far larger, as "the size of administrative units and provinces under a particular dynasty is in direct proportion to the size of its militia and the groups that support the dynasty."

The Muqaddimah further notes that Moses lived only a few generations after Jacob
Jacob
Jacob "heel" or "leg-puller"), also later known as Israel , as described in the Hebrew Bible, the Talmud, the New Testament and the Qur'an was the third patriarch of the Hebrew people with whom God made a covenant, and ancestor of the tribes of Israel, which were named after his descendants.In the...

, the founder of the Israelite tribes, according to the Levite
Levite
In Jewish tradition, a Levite is a member of the Hebrew tribe of Levi. When Joshua led the Israelites into the land of Canaan, the Levites were the only Israelite tribe that received cities but were not allowed to be landowners "because the Lord the God of Israel himself is their inheritance"...

 tribe genealogy, as described by Al-Masudi. Ibn Khaldun argues that it "is improbable that the descendants of one man could branch out into such a number within four generations." The Muqaddimah also states that there was a general assumption that Soloman's army was similarly large, but Ibn Khaldun refutes this, noting that Soloman came only eleven generations after Jacob, and argues that the "descendants of one man in eleven generations would not branch out into such a number, as has been assumed." He then agrees with another statement from the "Israelite Stories" suggesting that Soloman's army had 12,000 soldiers and 1,400 horses. He notes that this was when the Israelite state was at its strongest, making other claims giving larger numbers for the Israelite army unlikely. Ibn Khaldun notes that Jews have claimed the unrealistically large increase in the Israelite population within several generations was possible because it was a miracle
Miracle
A miracle often denotes an event attributed to divine intervention. Alternatively, it may be an event attributed to a miracle worker, saint, or religious leader. A miracle is sometimes thought of as a perceptible interruption of the laws of nature. Others suggest that a god may work with the laws...

 of God, a claim that Ibn Khaldun did not dismiss completely. He considers such a miracle highly unlikely, but appears to be open to the possibility.

Islamic theology

The Muqaddimah contains discussions on Islamic theology
Islamic theology
Islamic theology is a branch of Islamic studies regarding the beliefs associated with the Islamic faith. Any religious belief system, or creed, can be considered an example of aqidah. However, this term has taken a significant technical usage in Islamic history and theology, denoting those...

 which show that Ibn Khaldun was a follower of the orthodox Ash'ari
Ash'ari
The Ashʿari theology is a school of early Muslim speculative theology founded by the theologian Abu al-Hasan al-Ash'ari...

 school of Sunni Islam
Sunni Islam
Sunni Islam is the largest branch of Islam. Sunni Muslims are referred to in Arabic as ʾAhl ūs-Sunnah wa āl-Ǧamāʿah or ʾAhl ūs-Sunnah for short; in English, they are known as Sunni Muslims, Sunnis or Sunnites....

ic thought and a supporter of al-Ghazali
Al-Ghazali
Abu Hāmed Mohammad ibn Mohammad al-Ghazzālī , known as Algazel to the western medieval world, born and died in Tus, in the Khorasan province of Persia was a Persian Muslim theologian, jurist, philosopher, and mystic....

's religious views. He was also a critic of Neoplatonism
Neoplatonism
Neoplatonism , is the modern term for a school of religious and mystical philosophy that took shape in the 3rd century AD, based on the teachings of Plato and earlier Platonists, with its earliest contributor believed to be Plotinus, and his teacher Ammonius Saccas...

, particularly its notion of a hierarchy of being
Great chain of being
The great chain of being , is a Christian concept detailing a strict, religious hierarchical structure of all matter and life, believed to have been decreed by the Christian God.-Divisions:...

. He argued that theosis
Theosis
In Christian theology, divinization, deification, making divine or theosis is the transforming effect of divine grace. This concept of salvation is historical and fundamental for Christian understanding that is prominent in the Eastern Orthodox Church and also in the Catholic Church, and is a...

 requires the participation of revelation
Revelation
In religion and theology, revelation is the revealing or disclosing, through active or passive communication with a supernatural or a divine entity...

 and is not possible through reason
Reason
Reason is a term that refers to the capacity human beings have to make sense of things, to establish and verify facts, and to change or justify practices, institutions, and beliefs. It is closely associated with such characteristically human activities as philosophy, science, language, ...

 alone. He based his argument on the "irreducibility of the empirical
Empirical
The word empirical denotes information gained by means of observation or experimentation. Empirical data are data produced by an experiment or observation....

 nature of our knowledge of facts, which cannot then be converted into abstract and pure concepts at a higher level of human consciousness."

The Muqaddimah covers the historical development of kalam
Kalam
ʿIlm al-Kalām is the Islamic philosophical discipline of seeking theological principles through dialectic. Kalām in Islamic practice relates to the discipline of seeking theological knowledge through debate and argument. A scholar of kalām is referred to as a mutakallim...

 and the different schools of Islamic thought, notably the Mu'tazili
Mu'tazili
' is an Islamic school of speculative theology that flourished in the cities of Basra and Baghdad, both in present-day Iraq, during the 8th–10th centuries. The adherents of the Mu'tazili school are best known for their having asserted that, because of the perfect unity and eternal nature of God,...

 and Ash'ari
Ash'ari
The Ashʿari theology is a school of early Muslim speculative theology founded by the theologian Abu al-Hasan al-Ash'ari...

 schools. Ibn Khaldun, being a follower of the Ash'ari school, criticizes the views of the Mu'tazili school, and bases his criticisms on the views of Abu al-Hasan al-Ash'ari
Abu al-Hasan al-Ash'ari
Abū al-Hasan Alī ibn Ismā'īl al-Ash'arī was a Muslim Arab theologian and the founder of the Ash'ari school of early Islamic philosophy and Islamic theology.-Biography:...

, whom he describes as "the mediator between different approaches in the kalam
Kalam
ʿIlm al-Kalām is the Islamic philosophical discipline of seeking theological principles through dialectic. Kalām in Islamic practice relates to the discipline of seeking theological knowledge through debate and argument. A scholar of kalām is referred to as a mutakallim...

." Ibn Khaldun also covers the historical development of Islamic logic
Logic in Islamic philosophy
Logic played an important role in Islamic philosophy .Islamic Logic or mantiq is similar science to what is called Traditional Logic in Western Sciences.- External links :*Routledge Encyclopedia of Philosophy: , Routledge, 1998...

 in the context of theology, as he viewed logic as being distinct from early Islamic philosophy
Early Islamic philosophy
Early Islamic philosophy or classical Islamic philosophy is a period of intense philosophical development beginning in the 2nd century AH of the Islamic calendar and lasting until the 6th century AH...

, and believed that philosophy should remain separate from theology. The book also contains commentaries on verses from the Qur'an
Qur'an
The Quran , also transliterated Qur'an, Koran, Alcoran, Qur’ān, Coran, Kuran, and al-Qur’ān, is the central religious text of Islam, which Muslims consider the verbatim word of God . It is regarded widely as the finest piece of literature in the Arabic language...

.

Islamic psychology

In Islamic psychology, Ibn Khaldun wrote the following on dream interpretation
Dream interpretation
Dream interpretation is the process of assigning meaning to dreams. In many ancient societies, such as those of Egypt and Greece, dreaming was considered a supernatural communication or a means of divine intervention, whose message could be unravelled by people with certain powers...

:

Science of hadith

Ibn Khaldun discussed the science of hadith. He disagreed with the use of reason
Reason
Reason is a term that refers to the capacity human beings have to make sense of things, to establish and verify facts, and to change or justify practices, institutions, and beliefs. It is closely associated with such characteristically human activities as philosophy, science, language, ...

 in the evaluation of a hadith
Hadith
The term Hadīth is used to denote a saying or an act or tacit approval or criticism ascribed either validly or invalidly to the Islamic prophet Muhammad....

, arguing that "there is no place for the intellect
Intelligence
Intelligence has been defined in different ways, including the abilities for abstract thought, understanding, communication, reasoning, learning, planning, emotional intelligence and problem solving....

 in them, save that the intellect may be used in connection with them to relate problems of detail with basic principles."

On the authority of the Sahih al-Bukhari
Sahih al-Bukhari
Ṣaḥīḥ al-Bukhārī , as it is commonly referred to, is one of the six canonical hadith collections of Islam. These prophetic traditions, or hadith, were collected by the Persian Muslim scholar Muhammad ibn Ismail al-Bukhari, after being transmitted orally for generations. Muslims view this as one of...

, the Muqaddimah also argues that, despite the Islamic belief that the Torah
Torah
Torah- A scroll containing the first five books of the BibleThe Torah , is name given by Jews to the first five books of the bible—Genesis , Exodus , Leviticus , Numbers and Deuteronomy Torah- A scroll containing the first five books of the BibleThe Torah , is name given by Jews to the first five...

 was altered by the Jews, the Muslims should neither believe nor disbelieve historical claims concerning the Torah made by Jews and Christian
Christian
A Christian is a person who adheres to Christianity, an Abrahamic, monotheistic religion based on the life and teachings of Jesus of Nazareth as recorded in the Canonical gospels and the letters of the New Testament...

s, particularly in regards to miraculous events. He states that:

Sharia law and Fiqh jurisprudence

Ibn Khaldun
Ibn Khaldun
Ibn Khaldūn or Ibn Khaldoun was an Arab Tunisian historiographer and historian who is often viewed as one of the forerunners of modern historiography, sociology and economics...

 was an Islamic jurist
Ulema
Ulama , also spelt ulema, refers to the educated class of Muslim legal scholars engaged in the several fields of Islamic studies. They are best known as the arbiters of shari‘a law...

 and discussed the topics of Sharia
Sharia
Sharia law, is the moral code and religious law of Islam. Sharia is derived from two primary sources of Islamic law: the precepts set forth in the Quran, and the example set by the Islamic prophet Muhammad in the Sunnah. Fiqh jurisprudence interprets and extends the application of sharia to...

 (Islamic law) and Fiqh
Fiqh
Fiqh is Islamic jurisprudence. Fiqh is an expansion of the code of conduct expounded in the Quran, often supplemented by tradition and implemented by the rulings and interpretations of Islamic jurists....

 (Islamic jurisprudence) in his Muqaddimah. Ibn Khaldun wrote that "Jurisprudence
Jurisprudence
Jurisprudence is the theory and philosophy of law. Scholars of jurisprudence, or legal theorists , hope to obtain a deeper understanding of the nature of law, of legal reasoning, legal systems and of legal institutions...

 is the knowledge of the classification of the laws of God
God
God is the English name given to a singular being in theistic and deistic religions who is either the sole deity in monotheism, or a single deity in polytheism....

." In regards to jurisprudence, he acknowledged the inevitability of change in all aspects of a community
Community
The term community has two distinct meanings:*a group of interacting people, possibly living in close proximity, and often refers to a group that shares some common values, and is attributed with social cohesion within a shared geographical location, generally in social units larger than a household...

, and wrote:
Ibn Khaldun further described Fiqh jurisprudence as "knowledge of the rules of God which concern the actions of persons who own themselves bound to obey the law respecting what is required (wajib), forbidden (haraam
Haraam
Haraam is an Arabic term meaning "forbidden", or "sacred". In Islam it is used to refer to anything that is prohibited by the word of Allah in the Qur'an or the Hadith Qudsi. Haraam is the highest status of prohibition given to anything that would result in sin when a Muslim commits it...

), recommended (mandūb), disapproved (makruh
Makruh
In Islamic terminology, something which is makruh is a disliked or offensive act . Though it is not haram and therefore not a sin, a person who abstains from this action will be rewarded. Muslims are encouraged to avoid such actions when possible...

) or merely permitted (mubah
Mubah
'Mubah' is an Islamic Arabic term denoting an action as neither forbidden nor recommended, and so religiously neutral. This is one of the degrees of approval in Islamic law....

)."

Biology

Some of Ibn Khaldun's thoughts, according to some commentators, anticipate the biological
Biology
Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines...

 theory of evolution
Evolution
Evolution is any change across successive generations in the heritable characteristics of biological populations. Evolutionary processes give rise to diversity at every level of biological organisation, including species, individual organisms and molecules such as DNA and proteins.Life on Earth...

. Ibn Khaldun asserted that humans developed from "the world of the monkeys", in a process by which "species become more numerous" in Chapter 1 of the Muqaddimah:
Ibn Khaldun believed that human
Human
Humans are the only living species in the Homo genus...

s are the most evolved form of animal
Animal
Animals are a major group of multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life. Most animals are motile, meaning they can move spontaneously and...

s, in that they have the ability to reason. The Muqaddimah also states in Chapter 6:

His evolutionary ideas appear to be similar to those found in the Encyclopedia of the Brethren of Purity
Encyclopedia of the Brethren of Purity
The Encyclopedia of the Brethren of Purity was a large encyclopedia in 52 treatises written by the mysterious Brethren of Purity of Basra, Iraq sometime in the second half of the 10th century CE...

 Ibn Khaldun was also an adherent of environmental determinism
Environmental determinism
Environmental determinism, also known as climatic determinism or geographical determinism, is the view that the physical environment, rather than social conditions, determines culture...

. He explained that black skin
Black people
The term black people is used in systems of racial classification for humans of a dark skinned phenotype, relative to other racial groups.Different societies apply different criteria regarding who is classified as "black", and often social variables such as class, socio-economic status also plays a...

 was due to the hot climate of sub-Saharan Africa
Sub-Saharan Africa
Sub-Saharan Africa as a geographical term refers to the area of the African continent which lies south of the Sahara. A political definition of Sub-Saharan Africa, instead, covers all African countries which are fully or partially located south of the Sahara...

 and not due to their lineage. He thus dispelled the Hamitic
Hamitic
Hamitic is an historical term for the peoples supposedly descended from Noah's son Ham, paralleling Semitic and Japhetic.It was formerly used for grouping the non-Semitic Afroasiatic languages , but since, unlike the Semitic branch, these have not been shown to form a phylogenetic unity, the term...

 theory, where the sons of Ham were cursed by being black, as a myth.

Chemistry

Ibn Khaldun
Ibn Khaldun
Ibn Khaldūn or Ibn Khaldoun was an Arab Tunisian historiographer and historian who is often viewed as one of the forerunners of modern historiography, sociology and economics...

 was a critic of the practice of alchemy in the Islamic world. In chapter 23 of his work, entitled Fi 'ilm al-kimya, he discussed the history of alchemy
Alchemy
Alchemy is an influential philosophical tradition whose early practitioners’ claims to profound powers were known from antiquity. The defining objectives of alchemy are varied; these include the creation of the fabled philosopher's stone possessing powers including the capability of turning base...

, the views of alchemists such as Geber
Geber
Abu Musa Jābir ibn Hayyān, often known simply as Geber, was a prominent polymath: a chemist and alchemist, astronomer and astrologer, engineer, geologist, philosopher, physicist, and pharmacist and physician. Born and educated in Tus, he later traveled to Kufa...

, and the theories of the transmutation of metals
Philosopher's stone
The philosopher's stone is a legendary alchemical substance said to be capable of turning base metals into gold or silver. It was also sometimes believed to be an elixir of life, useful for rejuvenation and possibly for achieving immortality. For many centuries, it was the most sought-after goal...

 and elixir of life
Elixir of life
The elixir of life, also known as the elixir of immortality and sometimes equated with the philosopher's stone, is a legendary potion, or drink, that grants the drinker eternal life and or eternal youth. Many practitioners of alchemy pursued it. The elixir of life was also said to be able to create...

. In chapter 26, entitled Fi inkar thamrat al-kimya wa istihalat wujudiha wa ma yansha min al-mafasid, he wrote a systematic refutation of alchemy on social, scientific, philosophical and religious grounds.

He begins his refutation on social grounds, arguing that many alchemists are incapable of earning a living because of the thought of becoming rich through alchemy and end up "losing their credibility because of the futility of their attempts".

He also argues that some alchemists resort to fraud
Fraud
In criminal law, a fraud is an intentional deception made for personal gain or to damage another individual; the related adjective is fraudulent. The specific legal definition varies by legal jurisdiction. Fraud is a crime, and also a civil law violation...

, either openly by applying a thin layer of gold
Gold
Gold is a chemical element with the symbol Au and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Pure gold has a bright yellow color and luster traditionally considered attractive, which it maintains without oxidizing in air or water. Chemically, gold is a...

/silver
Silver
Silver is a metallic chemical element with the chemical symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal...

 on top of silver/copper
Copper
Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish...

 jewellery, or secretly using an artificial procedure of covering whitened copper
Copper
Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish...

 with sublimated mercury
Mercury (element)
Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum...

, though only skilled experiment
Experiment
An experiment is a methodical procedure carried out with the goal of verifying, falsifying, or establishing the validity of a hypothesis. Experiments vary greatly in their goal and scale, but always rely on repeatable procedure and logical analysis of the results...

ers can carry out the latter. He admits, however, that most alchemists are honest and carry out their investigations in good faith with the belief that the transmutation of metals is possible, but on the basis that there has never been any successful attempt to date, he argues that transmutation is an implausible theory without any reliable scientific evidence to support it. He reports the earlier opinions of al-Farabi
Al-Farabi
' known in the West as Alpharabius , was a scientist and philosopher of the Islamic world...

, Avicenna
Avicenna
Abū ʿAlī al-Ḥusayn ibn ʿAbd Allāh ibn Sīnā , commonly known as Ibn Sīnā or by his Latinized name Avicenna, was a Persian polymath, who wrote almost 450 treatises on a wide range of subjects, of which around 240 have survived...

 and al-Tughrai
Al-Tughrai
Mu'ayyad al-Din Abu Isma‘il al-Husayn ibn Ali al-Tughra'i was an 11th–12th century Persian physician.Mu'ayyad al-Din al-Tughra'i, was born in Isfahan in 1061CE, and was an important alchemist, poet, and administrative secretary...

 on alchemy, and then proceeds to advance his own arguments against it. One such argument is that "human science
Science
Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe...

 is powerless even to attain what is inferior to it" and that alchemy "resembles someone who wants to produce a man, an animal or a plant." Another sociological argument he uses is that, even if transmutation were possible, the disproportionate growth of gold and silver "would make transaction
Financial transaction
A financial transaction is an event or condition under the contract between a buyer and a seller to exchange an asset for payment. It involves a change in the status of the finances of two or more businesses or individuals.-History:...

s useless and would run counter to divine wisdom
Wisdom
Wisdom is a deep understanding and realization of people, things, events or situations, resulting in the ability to apply perceptions, judgements and actions in keeping with this understanding. It often requires control of one's emotional reactions so that universal principles, reason and...

." He ends his arguments with a restatement of his position:

Climate theory

The Muqaddimah anticipated the meteorological
Meteorology
Meteorology is the interdisciplinary scientific study of the atmosphere. Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the 18th century. The 19th century saw breakthroughs occur after observing networks developed across several countries...

 climate theory of environmental determinism
Environmental determinism
Environmental determinism, also known as climatic determinism or geographical determinism, is the view that the physical environment, rather than social conditions, determines culture...

, later proposed by Montesquieu
Charles de Secondat, baron de Montesquieu
Charles-Louis de Secondat, baron de La Brède et de Montesquieu , generally referred to as simply Montesquieu, was a French social commentator and political thinker who lived during the Enlightenment...

 in the 18th century. Like Montesquieu, Ibn Khaldun studied "the physical environment in which man lives in order to understand how it influences him in his non-physical characteristics." He explained the differences between different peoples, whether nomad
Nomad
Nomadic people , commonly known as itinerants in modern-day contexts, are communities of people who move from one place to another, rather than settling permanently in one location. There are an estimated 30-40 million nomads in the world. Many cultures have traditionally been nomadic, but...

ic or sedentary peoples, including their customs and institutions, in terms of their "physical environment-habitat, climate, soil, food, and the different ways in which they are forced to satisfy their needs and obtain a living." This was a departure from the climatic theories expressed by authors from Hippocrates
Hippocrates
Hippocrates of Cos or Hippokrates of Kos was an ancient Greek physician of the Age of Pericles , and is considered one of the most outstanding figures in the history of medicine...

 to Jean Bodin
Jean Bodin
Jean Bodin was a French jurist and political philosopher, member of the Parlement of Paris and professor of law in Toulouse. He is best known for his theory of sovereignty; he was also an influential writer on demonology....

. It has been suggested that Ibn Khaldun may have had an influence upon Montesquieu's theory through the traveller Jean Chardin
Jean Chardin
Jean Chardin , born Jean-Baptiste Chardin, and also known as Sir John Chardin, was a French jeweller and traveller whose ten-volume book The Travels of Sir John Chardin is regarded as one of the finest works of early Western scholarship on Persia and the Near East.-Life and work:Chardin was born in...

, who travelled to Persia and described a theory resembling Ibn Khaldun's climatic theory.

Political theory

The Muqaddimah deals with various questions of political theory
Political philosophy
Political philosophy is the study of such topics as liberty, justice, property, rights, law, and the enforcement of a legal code by authority: what they are, why they are needed, what, if anything, makes a government legitimate, what rights and freedoms it should protect and why, what form it...

. In some ways, his political theories show the influence of Aristotle
Aristotle
Aristotle was a Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology...

, while in other ways they anticipate the works of Niccolò Machiavelli
Niccolò Machiavelli
Niccolò di Bernardo dei Machiavelli was an Italian historian, philosopher, humanist, and writer based in Florence during the Renaissance. He is one of the main founders of modern political science. He was a diplomat, political philosopher, playwright, and a civil servant of the Florentine Republic...

 and Thomas Hobbes
Thomas Hobbes
Thomas Hobbes of Malmesbury , in some older texts Thomas Hobbs of Malmsbury, was an English philosopher, best known today for his work on political philosophy...

.

In the Muqaddimahs Introductory Remarks, Ibn Khaldun agrees with the classical republicanism
Classical republicanism
Classical republicanism is a form of republicanism developed in the Renaissance inspired by the governmental forms and writings of classical antiquity. The earliest examples of the school were classical writers such as Aristotle, Polybius, and Cicero...

 of Aristotelian
Aristotelianism
Aristotelianism is a tradition of philosophy that takes its defining inspiration from the work of Aristotle. The works of Aristotle were initially defended by the members of the Peripatetic school, and, later on, by the Neoplatonists, who produced many commentaries on Aristotle's writings...

 proposition that man is political by nature, and that man's interdependence creates the need for the political community
Community
The term community has two distinct meanings:*a group of interacting people, possibly living in close proximity, and often refers to a group that shares some common values, and is attributed with social cohesion within a shared geographical location, generally in social units larger than a household...

. Yet Ibn Khaldun argues, like Hobbes later, that men and tribes need to defend themselves from potential attack by beast or even unjust men, and thus political communities are formed. The glue which holds such tribes together and eventually forms "royal authority" or the state, according to Ibn Khaldun, is 'asabiyah
Asabiyyah
`Asabiyya or asabiyah refers to social solidarity with an emphasis on unity, group consciousness, and social cohesion, originally in a context of "tribalism" and "clanism", but sometimes used for modern nationalism as well, resembling also communitarism...

 or group feeling. Ibn Khaldun argues that the best type of political community is the Caliphate or the Islamic state, and argues that the neo-Platonist political theories of al-Farabi
Al-Farabi
' known in the West as Alpharabius , was a scientist and philosopher of the Islamic world...

 and Ibn Sina and the "perfect state" (Madina al-Fadilah) are useless because God's Law, the sharia
Sharia
Sharia law, is the moral code and religious law of Islam. Sharia is derived from two primary sources of Islamic law: the precepts set forth in the Quran, and the example set by the Islamic prophet Muhammad in the Sunnah. Fiqh jurisprudence interprets and extends the application of sharia to...

, has been revealed to take account of public interest and the afterlife. The second most perfect state, Ibn Khaldun argues, is one based on justice and consideration for public welfare in this life, but not based on religious law and so not beneficial to one's afterlife. Ibn Khaldun calls this state blameworthy. Yet the worst type of state, according to Ibn Khaldun, is a tyranny wherein government usurps property rights and rules with injustice against the rights of men.

Ibn Khaldun also anticipates Machiavelli by attempting to answer the question of whether it is better for the ruler to be feared or loved. Ibn Khaldun, like Machiavelli, answers that it is best to be both. However, unlike Machiavelli, Khaldun believes that if that is not possible then it is better to be loved than feared because fear creates many negative effects in the state's population.

Ibn Khaldun writes that civilizations have lifespans like individuals, and that every state will eventually fall because sedentary luxuries distract them, and eventually government begins to overtax citizens and begin injustice against property rights, and "injustice ruins civilization." Eventually after one dynasty or royal authority falls, it is replaced by another, in a continuous cycle.

The British philosopher-anthropologist Ernest Gellner
Ernest Gellner
Ernest André Gellner was a philosopher and social anthropologist, described by The Daily Telegraph when he died as one of the world's most vigorous intellectuals and by The Independent as a "one-man crusade for critical rationalism."His first book, Words and Things —famously, and uniquely...

 considered Ibn Khaldun's definition of government
Government
Government refers to the legislators, administrators, and arbitrators in the administrative bureaucracy who control a state at a given time, and to the system of government by which they are organized...

, "an institution which prevents injustice other than such as it commits itself", the best in the history of political theory
Political philosophy
Political philosophy is the study of such topics as liberty, justice, property, rights, law, and the enforcement of a legal code by authority: what they are, why they are needed, what, if anything, makes a government legitimate, what rights and freedoms it should protect and why, what form it...

.

Assessment of various civilizations

While discussing his "new science", now associated with the social sciences
Social sciences
Social science is the field of study concerned with society. "Social science" is commonly used as an umbrella term to refer to a plurality of fields outside of the natural sciences usually exclusive of the administrative or managerial sciences...

, Ibn Khaldūn states that no other author before him, as far as he was aware, had written about it. However, he was aware that much knowledge of the past had been lost, and thus he was open to the possibility that someone might have anticipated him but that their work had not survived:
Perhaps they have written exhaustively on this topic, and their work did not reach us. There are many sciences. There have been numerous sages among the nations of mankind. The knowledge that has not come down to us is larger than the knowledge that has. Where are the sciences of the Persians
Persian people
The Persian people are part of the Iranian peoples who speak the modern Persian language and closely akin Iranian dialects and languages. The origin of the ethnic Iranian/Persian peoples are traced to the Ancient Iranian peoples, who were part of the ancient Indo-Iranians and themselves part of...

 that ‘Umar
Umar
`Umar ibn al-Khattāb c. 2 November , was a leading companion and adviser to the Islamic prophet Muhammad who later became the second Muslim Caliph after Muhammad's death....

 ordered to be wiped out at the time of the conquest? Where are the sciences of the Chaladaeans
Chaldea
Chaldea or Chaldaea , from Greek , Chaldaia; Akkadian ; Hebrew כשדים, Kaśdim; Aramaic: ܟܐܠܕܘ, Kaldo) was a marshy land located in modern-day southern Iraq which came to briefly rule Babylon...

, the Syria
Syria
Syria , officially the Syrian Arab Republic , is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the West, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest....

ns and the Babylonia
Babylonia
Babylonia was an ancient cultural region in central-southern Mesopotamia , with Babylon as its capital. Babylonia emerged as a major power when Hammurabi Babylonia was an ancient cultural region in central-southern Mesopotamia (present-day Iraq), with Babylon as its capital. Babylonia emerged as...

ns, and the scholarly products and results that were theirs? Where are the sciences of the Copt
Copt
The Copts are the native Egyptian Christians , a major ethnoreligious group in Egypt....

s, their predecessors
Ancient Egypt
Ancient Egypt was an ancient civilization of Northeastern Africa, concentrated along the lower reaches of the Nile River in what is now the modern country of Egypt. Egyptian civilization coalesced around 3150 BC with the political unification of Upper and Lower Egypt under the first pharaoh...

? The sciences of only one nation, the Greeks
Greeks
The Greeks, also known as the Hellenes , are a nation and ethnic group native to Greece, Cyprus and neighboring regions. They also form a significant diaspora, with Greek communities established around the world....

, have come down to us, because they were translated through Al-Ma'mun
Al-Ma'mun
Abū Jaʿfar Abdullāh al-Māʾmūn ibn Harūn was an Abbasid caliph who reigned from 813 until his death in 833...

's efforts. He was successful in this direction because he had many translators at his disposal and spent much money in this connection.


Ibn Khaldūn characterized Aristotle
Aristotle
Aristotle was a Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great. His writings cover many subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, linguistics, politics, government, ethics, biology, and zoology...

 as "the First Teacher", for his having "improved the methods of logic and systematized its problems and details."

Arabic and Persian civilizations

Ibn Khaldun makes a clear distinction between two types of Arab people; those who are Arab by descent, i.e. of ethnic Arab descent, and those who are Arab by language, i.e. ethnically non-Arab populations who speak Arabic
Arabic language
Arabic is a name applied to the descendants of the Classical Arabic language of the 6th century AD, used most prominently in the Quran, the Islamic Holy Book...

 as a first language. He never refers to that final group as being Arabs, rather he called them by their ethnicity or places of origin (i.e. 'Persians' or 'the inhabitants of Egypt'):
About ethnic Arabs, he wrote:
The Arabs dominate only of the plains, because they are, by their savage nature, people of pillage and corruption. They pillage everything that they can take without fighting or taking risks, then flee to their refuge in the wilderness, and do not stand and do battle unless in self-defense. So when they encounter any difficulty or obstacle, they leave it alone and look for easier prey. And tribes well-fortified against them on the slopes of the hills escape their corruption and destruction, because they prefer not to climb hills, nor expend effort, nor take risks.


On the Arab conquests
Muslim conquests
Muslim conquests also referred to as the Islamic conquests or Arab conquests, began with the Islamic prophet Muhammad. He established a new unified polity in the Arabian Peninsula which under the subsequent Rashidun and Umayyad Caliphates saw a century of rapid expansion of Muslim power.They...

 of the 7th century:
Religious propaganda gives a dynasty at its beginning another power in addition to that of the group feeling it possessed as the result of the number of its supporters... This happened to the Arabs at the beginning of Islam
Islam
Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

 during the Muslim conquests. The armies of the Muslims
Rashidun army
The Rashidun Caliphate Army or Rashidun army was the primary military body of the Rashidun Caliphate's armed forces during the Muslim conquests of the 7th century, serving alongside the Rashidun Navy...

 at al-Qadisiyah
Battle of al-Qadisiyyah
The Battle of al-Qādisiyyah was fought in 636; it was the decisive engagement between the Arab muslim army and the Sassanid Persian army during the first period of Muslim expansion. It resulted in the Islamic conquest of Persia, and was key to the conquest of Iraq...

 and at the Yarmuk
Battle of Yarmouk
The Battle of Yarmouk was a major battle between the Muslim Arab forces of the Rashidun Caliphate and the armies of the East Roman-Byzantine Empire. The battle consisted of a series of engagements that lasted for six days in August 636, near the Yarmouk River, along what is today the border...

 numbered some 30,000 in each case, while the Persian troops
Sassanid army
The birth of the Sassanid army dates back to the rise of Ardashir I , the founder of the Sassanid dynasty, to the throne. Ardashir aimed at the revival of the Persian Empire, and to further this aim, he reformed the military by forming a standing army which was under his personal command and whose...

 at al-Qadisiyah numbered 120,000, and the troops
Byzantine army
The Byzantine army was the primary military body of the Byzantine armed forces, serving alongside the Byzantine navy. A direct descendant of the Roman army, the Byzantine army maintained a similar level of discipline, strategic prowess and organization...

 of Heraclius
Heraclius
Heraclius was Byzantine Emperor from 610 to 641.He was responsible for introducing Greek as the empire's official language. His rise to power began in 608, when he and his father, Heraclius the Elder, the exarch of Africa, successfully led a revolt against the unpopular usurper Phocas.Heraclius'...

, according to al-Waqidi
Al-Waqidi
Abu `Abdullah Muhammad Ibn ‘Omar Ibn Waqid al-Aslami , commonly referred to as al-Waqidi , was an early Muslim historian.He was born and educated in Medina...

, 400,000. Neither of the two parties was able to withstand the Arabs, who routed them and seized what they possessed.


Some of the content in the book is also related to the "Hadith of Persians
Persian people
The Persian people are part of the Iranian peoples who speak the modern Persian language and closely akin Iranian dialects and languages. The origin of the ethnic Iranian/Persian peoples are traced to the Ancient Iranian peoples, who were part of the ancient Indo-Iranians and themselves part of...

 and belief":
Here again he uses the term "Arab" to refer to the ethnic Arabs of the Arabian Peninsula
Arabian Peninsula
The Arabian Peninsula is a land mass situated north-east of Africa. Also known as Arabia or the Arabian subcontinent, it is the world's largest peninsula and covers 3,237,500 km2...

 and "Ajam
Ajam
Ajam is a word used in Persian and Arabic literature but with different concepts. Ajam in Arabic has two primary meanings: "non-Arab" and "Persian".literally it has other meaning "one who is illiterate in language", "silent", or "mute", and refers to non-Arabs in general, or people of Southern...

" to refer to non-Arabs in general, though it often it referred more specifically to Iranian peoples
Iranian peoples
The Iranian peoples are an Indo-European ethnic-linguistic group, consisting of the speakers of Iranian languages, a major branch of the Indo-European language family, as such forming a branch of Indo-European-speaking peoples...

 from a sedentary Persian culture
Culture of Iran
To best understand Iran, Afghanistan, their related societies and their people, one must first attempt to acquire an understanding of their culture. It is in the study of this area where the Persian identity optimally expresses itself...

 on the Iranian plateau
Iranian plateau
The Iranian plateau, or Iranic plateau, is a geological formation in Southwest Asia. It is the part of the Eurasian Plate wedged between the Arabian and Indian plates, situated between the Zagros mountains to the west, the Caspian Sea and the Kopet Dag to the north, the Hormuz Strait and Persian...

. Ibn Khaldun made a distinction between being linguistically Arabized and being culturally Arabized. Cultural Arabization to him meant adopting a tribal, bedouin and desert livestyle and was opposite to the sedentary, urban culture, which was inherently non-Arab. Throughout his work he makes the point that Arabs during the early Muslim expansion, were indeed de-Arabized and to some degree adopted Persian and Greek sedentary culture. Also note that in medieval Islamic literature
Islamic literature
Islamic literature is literature written with an Islamic perspective, in any language.The most well known fiction from the Islamic world was The Book of One Thousand and One Nights , which was a compilation of many earlier folk tales told by the Persian Queen Scheherazade...

, there were two regions known as Iraq: the Iraq-e-Arab
Iraq
Iraq ; officially the Republic of Iraq is a country in Western Asia spanning most of the northwestern end of the Zagros mountain range, the eastern part of the Syrian Desert and the northern part of the Arabian Desert....

 (Arab Iraq) and the Iraq-e-Ajam
Persian Iraq
Persian Iraq , also spelled Persian Irak, is an obsolete term for the central region of Iran, including cities such as Isfahan, Ray, Qazvin, and Kashan. From the 11th to 16th centuries, the term Iraq referred to two distinct regions: Arabian Iraq and Persian Iraq...

 (Persian Iraq). The Persian Iraq mentioned by Ibn Khaldun is the historic Iraq-e-Ajam (Persian Iraq) which constitutes the triangle of Isfahan, Shiraz
Shiraz
Shiraz may refer to:* Shiraz, Iran, a city in Iran* Shiraz County, an administrative subdivision of Iran* Vosketap, Armenia, formerly called ShirazPeople:* Hovhannes Shiraz, Armenian poet* Ara Shiraz, Armenian sculptor...

 and Hamadan
Hamadan
-Culture:Hamadan is home to many poets and cultural celebrities. The city is also said to be among the world's oldest continuously inhabited cities.Handicrafts: Hamadan has always been well known for handicrafts like leather, ceramic, and beautiful carpets....

.

Ibn Khaldun, however, notes that by his time, the study of science in Persian culture had declined and was eventually surpassed by the culture of Egypt
Culture of Egypt
The culture of Egypt has thousands of years of recorded history. Ancient Egypt was among the earliest civilizations. For millennia, Egypt maintained a strikingly complex and stable culture that influenced later cultures of Europe, the Middle East and Africa. After the Pharaonic era, Egypt itself...

 of the Mamluk Sultanate
Mamluk Sultanate (Cairo)
The Mamluk Sultanate of Egypt was the final independent Egyptian state prior to the establishment of the Muhammad Ali Dynasty in 1805. It lasted from the overthrow of the Ayyubid Dynasty until the Ottoman conquest of Egypt in 1517. The sultanate's ruling caste was composed of Mamluks, Arabised...

:

Ibn Khaldun discussed the history of science
History of science
The history of science is the study of the historical development of human understandings of the natural world and the domains of the social sciences....

, and wrote the following on the history of Islamic science:

Jewish civilization

On the Jewish civilization:

Sub-Saharan Africa

Ibn Khaldūn's description of the various Sub-Saharan Africa
Sub-Saharan Africa
Sub-Saharan Africa as a geographical term refers to the area of the African continent which lies south of the Sahara. A political definition of Sub-Saharan Africa, instead, covers all African countries which are fully or partially located south of the Sahara...

n states:

The Western Sahel
Sahel
The Sahel is the ecoclimatic and biogeographic zone of transition between the Sahara desert in the North and the Sudanian Savannas in the south.It stretches across the North African continent between the Atlantic Ocean and the Red Sea....

:

Many translations of Ibn Khaldun were translated during the colonial era in order to fit the colonial propaganda machine. The Negro land of the Arabs Examined and Explained was written in 1841 and gives excerpts of older translations that were not part of colonial propaganda:
When the conquest of the West (by the Arabs) was completed, and merchants began to penetrate into the interior, they saw no nation of the Blacks so mighty as Ghanah, the dominions of which extended westward as far as the Ocean. The King's court was kept in the city of Ghanah, which, according to the author of the Book of Roger (El Idrisi), and the author of the Book of Roads and Realms (El Bekri), is divided into two parts, standing on both banks of the Nile, and ranks among the largest and most populous cities of the world. The people of Ghanah had for neighbours, on the east, a nation, which, according to historians, was called Susu; after which came another named Mali; and after that another known by the name of Kaukau; although some people prefer a different orthography, and write this name Kagho. The last-named nation was followed by a people called Tekrur. The people of Ghanah declined in course of time, being overwhelmed or absorbed by the Molaththemun (or muffled people; that is, the Morabites), who, adjoining them on the north towards the Berber country, attacked them, and, taking possession of their territory, compelled them to embrace the Mohammedan religion. The people of Ghanah, being invaded at a later period by the Susu, a nation of Blacks in their neighbourhood, were exterminated, or mixed with other Black nations. []


Ibn Khaldun suggests a link between the decline of Ghana
Ghana
Ghana , officially the Republic of Ghana, is a country located in West Africa. It is bordered by Côte d'Ivoire to the west, Burkina Faso to the north, Togo to the east, and the Gulf of Guinea to the south...

 and rise of the Almoravids. However, there is little evidence of there actually being an Almoravid conquest of Ghana[] Of those further south of Ghana he writes (it should be noted that the English translation of the text used the word "Negro
Negro
The word Negro is used in the English-speaking world to refer to a person of black ancestry or appearance, whether of African descent or not...

" as a translation for the Arabic world "Zanj
Zanj
Zanj was a name used by medieval Arab geographers to refer to both a certain portion of the coast of East Africa and its inhabitants, Bantu-speaking peoples called the Zanj...

"),

To the south of this...there is a Negro people called Lamlam. They are unbelievers. They brand themselves on the face and temples. The people of Ghanah and Takrur
Takrur
Takrur, Tekrur, or Tekrour was an ancient state of West Africa, which flourished roughly parallel to the Ghana Empire.-Origin:Takrur was the the name of the capital of the state which flourished on the lower Senegal River...

 invade their country, capture them, and sell them to merchants who transport them to the Maghrib
Maghrib
The Maghrib prayer , prayed just after sunset, is the fourth of five formal daily prayers performed by practicing Muslims.The formal daily prayers of Islam comprise different numbers of units, called rak'at. The Maghrib prayer has three obligatory rak'at. The first two fard rak'at are prayed...

. There, they constitute the ordinary mass of slaves. Beyond them to the south, there is no civilization in the proper sense. There are only humans who are closer to dumb animals than to rational beings. They live in thickets and caves and eat herbs and unprepared grain. They frequently eat each other. They cannot be considered human beings.


Nubia
Nubia
Nubia is a region along the Nile river, which is located in northern Sudan and southern Egypt.There were a number of small Nubian kingdoms throughout the Middle Ages, the last of which collapsed in 1504, when Nubia became divided between Egypt and the Sennar sultanate resulting in the Arabization...

:
In the middle of the first zone along the Nile, lie the countries of the Nubah and the Abyssinians and some of the oases down to Assuan. A settled part of the Nubah country is the city of Dongola, west of the Nile. Beyond it are 'Alwah 83 and Yulaq.84 Beyond them, a six days' journey north of Yulaq, is the mountain of the cataracts. This is a mountain which rises to a great height on the Egyptian side but is much less elevated on the side of the country of the Nubah, The Nile cuts through it and flows down precipitately in tremendous cascades for a long distance. Boats cannot get through. Cargoes from the Sudanese boats are taken off and carried on pack animals to Assuan at the entrance to Upper Egypt. In the same way, the cargoes of the boats from Upper Egypt are carried over the cataracts. The distance from the cataracts to Assuan is a twelve day's journey. The oases on the west bank of the Nile there are now in ruins. They show traces of ancient settlement.


Abyssinia (Ethiopia
Ethiopia
Ethiopia , officially known as the Federal Democratic Republic of Ethiopia, is a country located in the Horn of Africa. It is the second-most populous nation in Africa, with over 82 million inhabitants, and the tenth-largest by area, occupying 1,100,000 km2...

):
In the middle of the first zone, in its fifth section, is the country of the Abyssinians, through which a river flows, which comes from beyond the equator and 85 flows toward the land of the Nubah, where it flows into the Nile and so on down into Egypt. Many people have held fantastic opinions about it and thought that it was part of the Nile of the Qumr (Mountain of the Moon). Ptolemy mentioned it in the Geography. He mentioned that it did not belong to the Nile.
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