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Regnal year



 
 
A regnal year is a year of the reign of a sovereign. From Latin
Latin

Latin is an Italic language, historically spoken in Latium and Ancient Rome. Through the Military history of the Roman Empire, Latin spread throughout the Mediterranean and a large part of Europe....
 regnum meaning kingdom, rule.

The oldest dating systems were in regnal years, and considered the date as an ordinal
Ordinal number

In set theory, an ordinal number, or just ordinal, is the order type of a well-order. They are usually identified with hereditarily transitive sets....
, not a cardinal number
Cardinal number

In mathematics, cardinal numbers, or cardinals for short, are a generalization of the natural numbers used to measure the cardinality of Set ....
. For example, a monarch could have a first year of rule, a second year of rule, a third, and so on, but a zero year
Year zero

Year zero is not used in the widely used Gregorian calendar, nor in its predecessor, the Julian calendar. Under those systems, the year 1 BC is followed by AD 1....
 of rule would be nonsense. Applying this ancient epoch
Epoch (reference date)

In the fields of chronology and periodization, an epoch means an instant in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured....
 system to modern calculations of time, which include zero, is what led to the debate over when the third millennium began
Millennium

A millennium is a period of time equal to one thousand years . The term may implicitly refer to calendar millenniums; periods tied numerically to a particular calendar, specifically ones that begin at the starting point of the calendar in question or in later years which are whole number multiples of a thousand years after it....
.

An era name was assigned as the name of each year by the leader (emperor or king) of the East Asia
East Asia

East Asia is a subregion of Asia that can be defined in either Geography or cultural terms. Geography and geopolitically, it covers about 12,000,000 km?, or about 28 percent of the Asian continent, about 15 percent bigger than the area of Europe, though some categorize Tibet, Xinjiang, and Mongolia as Central Asia....
n countries of China
China

China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....
, Korea
Korea

Korea is a geographic area composed of two sovereign countries, a civilization, and a former state situated on the Korean Peninsula in East Asia....
, Japan
Japan

Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
, and Vietnam
Vietnam

Vietnam , officially the Socialist Republic of Vietnam , is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by People's Republic of China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea to the east....
 during some portion of their history.






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A regnal year is a year of the reign of a sovereign. From Latin
Latin

Latin is an Italic language, historically spoken in Latium and Ancient Rome. Through the Military history of the Roman Empire, Latin spread throughout the Mediterranean and a large part of Europe....
 regnum meaning kingdom, rule.

The oldest dating systems were in regnal years, and considered the date as an ordinal
Ordinal number

In set theory, an ordinal number, or just ordinal, is the order type of a well-order. They are usually identified with hereditarily transitive sets....
, not a cardinal number
Cardinal number

In mathematics, cardinal numbers, or cardinals for short, are a generalization of the natural numbers used to measure the cardinality of Set ....
. For example, a monarch could have a first year of rule, a second year of rule, a third, and so on, but a zero year
Year zero

Year zero is not used in the widely used Gregorian calendar, nor in its predecessor, the Julian calendar. Under those systems, the year 1 BC is followed by AD 1....
 of rule would be nonsense. Applying this ancient epoch
Epoch (reference date)

In the fields of chronology and periodization, an epoch means an instant in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured....
 system to modern calculations of time, which include zero, is what led to the debate over when the third millennium began
Millennium

A millennium is a period of time equal to one thousand years . The term may implicitly refer to calendar millenniums; periods tied numerically to a particular calendar, specifically ones that begin at the starting point of the calendar in question or in later years which are whole number multiples of a thousand years after it....
.

An era name was assigned as the name of each year by the leader (emperor or king) of the East Asia
East Asia

East Asia is a subregion of Asia that can be defined in either Geography or cultural terms. Geography and geopolitically, it covers about 12,000,000 km?, or about 28 percent of the Asian continent, about 15 percent bigger than the area of Europe, though some categorize Tibet, Xinjiang, and Mongolia as Central Asia....
n countries of China
China

China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....
, Korea
Korea

Korea is a geographic area composed of two sovereign countries, a civilization, and a former state situated on the Korean Peninsula in East Asia....
, Japan
Japan

Japan is an island country in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, People's Republic of China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south....
, and Vietnam
Vietnam

Vietnam , officially the Socialist Republic of Vietnam , is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by People's Republic of China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea to the east....
 during some portion of their history. The people of the country referred to that year by that name. Era names were used for over two millennia by Chinese emperors and are still used by Japanese emperors. It could last from one year to the length of the leader's reign. If it lasted more than one year, numbers were appended to the era name. If it lasted the entire length of the leader's reign, then that leader is often referred to by that name posthumously. However, the leader was often given a more complex formal posthumous name
Posthumous name

A posthumous name is an honorary name given to royalty, nobles, and sometimes others, in some cultures after the person's death. The posthumous name is commonly used when naming royalty of Table of Chinese monarchs, List of Korean monarchs, Vietnam and emperors of Japan....
 as well. It should not be confused with a temple name
Temple name

Temple names are commonly used when naming most Table of Chinese monarchs, List of Korean monarchs , and Vietnamese royalty. They should not be confused with era names....
, by which many leaders are known. The Republic of China era can be construed to be an era name, albeit one without an emperor. The Juche era can be construed to be an era name, although it is based on the year of birth of the country's eternal president and not on the year during which he assumed his office.

Reckoning in various cultures

In ancient times, calendar
Calendar

A calendar is a system of organize days for a social, religious, commercial or administrative purpose. This organization is done by giving names to periods of time ? typically days, weeks, months and years....
s were counted in terms of the number of years of the reign of the current monarch. The oldest such reckoning is preserved in the Sumerian king list
Sumerian king list

The Sumerian King List is an ancient text in the Sumerian language that lists monarch of Sumer from Sumerian and foreign dynasties. It records the location of "official" kingship, along with the rulers and the lengths of their rule....
.

In England, and later the United Kingdom
United Kingdom

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom , the UK or Britain,is a sovereign state located off the northwestern coast of continental Europe....
, until 1963, each Act of Parliament
Act of Parliament

An act of Parliament is a statute wikt:enacted as primary legislation by a national or sub-national parliament. It is broadly equivalent to an act of Congress in the United States....
 was defined by its serial number within the regnal year in which it was enacted.

In Canada
Canada

Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean....
, acts of Parliament
Parliament of Canada

The Parliament of Canada is Canada's legislature, seated at Parliament Hill in Ottawa, Ontario. The Governor General of Canada appoints the 105 members of the upper house, the Canadian Senate, on the recommendation of the Prime Minister of Canada....
 are dated by the session, the Parliament, the regnal year, and the calendar year. So, for example, a bill passed in the second session during the period spanning 2007-2008 would be dated thus: Second Session, Thirty-ninth Parliament, 56-57 Elizabeth II, 2007-2008

The Zoroastrian calendar
Zoroastrian calendar

The Zoroastrian calendar is a religious calendar used by members of the Zoroastrian faith, and it is an approximation of the solar calendar. To this day, Zoroastrianism, irrespective of geographic location, adhere to this calendar for religious purposes....
 also operated with regnal years following the reform of Ardashir I
Ardashir I

Ardashir I, founder of the Sassanid dynasty, was ruler of Istakhr , subsequently Fars , and finally "King of Kings of Etymology of Iran" . The dynasty Ardashir founded would rule for four centuries until overthrown by the Rashidun Caliphate in 651....
 (3rd century).

Asian era names


Chinese

The Chinese eras or Nian Hao were used sporadically from 156 BC and continuously from 140 BC. Until 1367 several were used during each emperor's reign. From 1368 until 1912 only one era name was used by each emperor, who was posthumously known by his era name.

Korean

Korean eras were used from 391 to 1274 and from 1894 to 1910. During the later years of the Joseon Dynasty
Joseon Dynasty

Joseon , was a sovereign state founded by Taejo Taejo of Joseon, and lasted for approximately five centuries. It was founded in the aftermath of the overthrow of the Goryeo Kingdom at what is today the city of Kaesong....
, years were also numbered from the founding of that dynasty in 1393. From 1952 until 1961, years were numbered in Dangi
Dangun

Dangun Wanggeom was the legendary founder of Gojoseon, the first Korean kingdom, around present-day Liaoning, Manchuria, and the Korean Peninsula....
 in South Korea
South Korea

South Korea, officially the Republic of Korea , ), often referred to as Korea and the "names of Korea#Revival of the names", is a Semi-presidential system republic in East Asia, located in the southern half of the Korean Peninsula....
, counting from the founding of Gojoseon
Gojoseon

Gojoseon was an ancient Korean kingdom, considered the first proper nation of the Korean people. According to the Samguk Yusa and other Korean medieval-era records, Gojoseon is said to have been founded in 2333 BC by the legendary Dangun, who is said to be the grandson of Heaven ....
 in 2333 BC.

Japanese

The official Japanese system or Nengo numbers years from the accession of the current emperor
Emperor of Japan

The of Japan is the symbol of the state and of the unity of the Japanese people. He is the head of the Imperial House of Japan. Under Japan's present constitution, the Emperor is the "symbol of the state and the unity of the people," and is a ceremonial figurehead in a constitutional monarchy ....
, regarding the calendar year during which the accession occurred as the first year. The current emperor Akihito
Akihito

is the current of Japan, and the 125th Emperor according to Japan's list of Emperors of Japan. He acceded to the throne in 1989, and is the List of longest reigning current monarchs monarch or lifelong leader....
 succeeded to the throne in 1989, and the new era name Heisei
Heisei

is the current Japanese era name in Japan. The Heisei era started on January 8, 1989, just one day after the death of the reigning Emperor, Hirohito....
 was decreed by the Cabinet
Cabinet of Japan

The is the executive branch of the government of Japan. It consists of the Prime Minister of Japan and up to fourteen other members, called Minister of State....
. Thus that year corresponds to . The system was in use sporadically from 645 and continuously from 701. Until 1867 several were used during each emperor's reign. From 1868 only one era name has been used by each emperor. Since 1868 each emperor has been known posthumously by his era name.

Notable king lists

  • Sumerian king list
    Sumerian king list

    The Sumerian King List is an ancient text in the Sumerian language that lists monarch of Sumer from Sumerian and foreign dynasties. It records the location of "official" kingship, along with the rulers and the lengths of their rule....
  • Abydos King List
    Abydos King List

    The Abydos King List, also called the Abydos Table is a list of the names of seventy-six kings and pharaohs of Ancient Egypt, found on the walls of the Temple of Seti I at Abydos, Egypt....
  • Turin King List
    Turin King List

    The Turin King List, also known as the Turin Royal Canon, is a hieratic papyrus thought to date from the reign of Ramesses II, now in the Museo Egizio at Turin....
  • Assyrian king list
  • Babylonian king list
    First Babylonian Dynasty

    The chronology of the first dynasty of Babylonia is debated as there is a Babylonian King List A and a Babylonian King List B. In this chronology, the regnal years of List A are used due to their wide usage....
  • Canon of Kings
    Canon of Kings

    The Canon of Kings was a dated list of kings used by ancient astronomers as a convenient means to date astronomical phenomena, such as eclipses....
  • Liberian Catalogue
    Liberian Catalogue

    In compiling the history of the Early Christian Church, the Liberian Catalogue , which was part of the illuminated manuscript known as the Chronography of 354, is an essential document, for it consists of a List of popes, designated bishops of Rome, ending with Pope Liberius , hence its name and approximate date....


See also

  • Sacral king
  • Vietnamese era name


External links