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Leiden



 
 
"Leyden" redirects here. For other uses, see Leyden (disambiguation)
Leyden (disambiguation)

Leyden may refer to* Leiden, a city and municipality in South Holland, Netherlands.* Several places in the United States** Leyden, Colorado...
.


Leiden (in English
English language

English is a West Germanic language that originated in Anglo-Saxon England and has lingua franca status in many parts of the world as a result of the military, economic, scientific, political and cultural influence of the British Empire in the 18th, 19th and early 20th centuries and that of the United States from the mid 20th century onwa...
 and archaic
Archaism

In language, an archaism is the use of a form of speech or writing that is no longer current. This can either be done deliberately or as part of a specific jargon or formula ....
 Dutch
Dutch language

Dutch is a West Germanic languages spoken by over 22 million people as a first language, and about 5 million people as a second language."1% of the EU population claims to speak Dutch well enough in order to have a conversation." Outside the European Union the number of second language speakers of Dutch is very small. Most native...
 also Leyden) is a city and municipality
Municipality

A municipality is an administrative entity composed of a clearly defined territory and its population and commonly denotes a city, town, or village, or a small grouping of them....
 in the province
Province

A province is a territorial unit, almost always an administrative division, within a country or state....
 of South Holland
South Holland

South Holland is a Provinces of the Netherlands situated on the North Sea in the western part of the Netherlands. The provincial capital is The Hague and its largest city is Rotterdam....
 in the Netherlands
Netherlands

The Netherlands is a country that is part of the Kingdom of the Netherlands. It is a parliamentary democratic constitutional monarchy. The Netherlands is located in North-West Europe, and bordered by the North Sea to the north and west, Belgium to the south, and Germany to the east....
 and has 118,000 inhabitants. It forms a single urban area with Oegstgeest
Oegstgeest

Media:Nl-Oegstgeest.ogg is a town and municipality in the province of South Holland in the western Netherlands....
, Leiderdorp
Leiderdorp

Media:Nl-Leiderdorp.ogg is a town and municipality in the western Netherlands, in the province of South Holland near the city of Leiden.The municipality covers an area of 12.29 km? of which 0.56 km? is water....
, Voorschoten
Voorschoten

Media:Nl-Voorschoten.ogg is a village and municipality in the western Netherlands, in the province of South Holland. It is a smaller town in the Randstad, enclosed by the cities of Leiden and The Hague....
, Valkenburg
Valkenburg

Valkenburg means falcon castle in Dutch and can refer to:* Valkenburg aan de Geul - a town in the province of Limburg , the southern-most Netherlands province....
, Rijnsburg
Rijnsburg

Media:Nl-Rijnsburg.ogg is a community in the eastern part of the city Katwijk, in the western Netherlands, in the province of South Holland. The name means Rhines Burg in Dutch....
 and Katwijk
Katwijk

Media:Nl-Katwijk.ogg is a coastal municipality and town in the province of South Holland in the western Netherlands....
, with 254,000 inhabitants.






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"Leyden" redirects here. For other uses, see Leyden (disambiguation)
Leyden (disambiguation)

Leyden may refer to* Leiden, a city and municipality in South Holland, Netherlands.* Several places in the United States** Leyden, Colorado...
.


Ltspkr
Leiden (in English
English language

English is a West Germanic language that originated in Anglo-Saxon England and has lingua franca status in many parts of the world as a result of the military, economic, scientific, political and cultural influence of the British Empire in the 18th, 19th and early 20th centuries and that of the United States from the mid 20th century onwa...
 and archaic
Archaism

In language, an archaism is the use of a form of speech or writing that is no longer current. This can either be done deliberately or as part of a specific jargon or formula ....
 Dutch
Dutch language

Dutch is a West Germanic languages spoken by over 22 million people as a first language, and about 5 million people as a second language."1% of the EU population claims to speak Dutch well enough in order to have a conversation." Outside the European Union the number of second language speakers of Dutch is very small. Most native...
 also Leyden) is a city and municipality
Municipality

A municipality is an administrative entity composed of a clearly defined territory and its population and commonly denotes a city, town, or village, or a small grouping of them....
 in the province
Province

A province is a territorial unit, almost always an administrative division, within a country or state....
 of South Holland
South Holland

South Holland is a Provinces of the Netherlands situated on the North Sea in the western part of the Netherlands. The provincial capital is The Hague and its largest city is Rotterdam....
 in the Netherlands
Netherlands

The Netherlands is a country that is part of the Kingdom of the Netherlands. It is a parliamentary democratic constitutional monarchy. The Netherlands is located in North-West Europe, and bordered by the North Sea to the north and west, Belgium to the south, and Germany to the east....
 and has 118,000 inhabitants. It forms a single urban area with Oegstgeest
Oegstgeest

Media:Nl-Oegstgeest.ogg is a town and municipality in the province of South Holland in the western Netherlands....
, Leiderdorp
Leiderdorp

Media:Nl-Leiderdorp.ogg is a town and municipality in the western Netherlands, in the province of South Holland near the city of Leiden.The municipality covers an area of 12.29 km? of which 0.56 km? is water....
, Voorschoten
Voorschoten

Media:Nl-Voorschoten.ogg is a village and municipality in the western Netherlands, in the province of South Holland. It is a smaller town in the Randstad, enclosed by the cities of Leiden and The Hague....
, Valkenburg
Valkenburg

Valkenburg means falcon castle in Dutch and can refer to:* Valkenburg aan de Geul - a town in the province of Limburg , the southern-most Netherlands province....
, Rijnsburg
Rijnsburg

Media:Nl-Rijnsburg.ogg is a community in the eastern part of the city Katwijk, in the western Netherlands, in the province of South Holland. The name means Rhines Burg in Dutch....
 and Katwijk
Katwijk

Media:Nl-Katwijk.ogg is a coastal municipality and town in the province of South Holland in the western Netherlands....
, with 254,000 inhabitants. It is located on the Old Rhine, close to the cities of The Hague
The Hague

The Hague is the third largest city in the Netherlands after Amsterdam and Rotterdam, with a population of 475,904 and an area of approximately 100 km?....
 and Haarlem
Haarlem

, in the past usually 'Harlem' in English, is a city in the Netherlands. It is also the Capital of the province of North Holland, the northern half of Holland, which at one time was one of the most powerful of the seven provinces of the Dutch Republic....
. The recreational area of the Kaag Lakes (Kagerplassen
Kagerplassen

The Kagerplassen is a small lake system in South Holland located to the northeast of Leiden. The Kaag Lakes are a popular area for boating, watersports, fishing, camping and walking....
) lies just to the northeast of Leiden.

Its geographical coordinates are (in decimals: 52.16N, 4.49E). RD coordinates (94, 464).

A university town since 1575, Leiden houses:
  • Leiden University
    Leiden University

    Leiden University , located in the city of Leiden, is the List of oldest universities in continuous operation#Oldest Universities by Region university in the Netherlands....
    ;
  • Leiden University Medical Centre.
Leiden is twinned with Oxford
Oxford

Oxford is a City status in the United Kingdom, and the county town of Oxfordshire, in South East England. It has a population of 151,000. The rivers River Cherwell and River Thames run through Oxford and meet south of the city centre....
, the location of England
England

native_name =|conventional_long_name = England|common_name = England|image_flag = Flag of England.svg|image_coat = England COA.svg|symbol_type = Royal Coat of Arms...
's oldest university
University of Oxford

The University of Oxford , located in the city of Oxford, Oxfordshire, England, is the List of oldest universities in continuous operation in the English-speaking world....
.

History

Although it is true that Leiden is an old city, its claimed connection with Roman
Ancient Rome

Ancient Rome was a civilization that grew out of a small agricultural community founded on the Italian Peninsula as early as the 10th century BC....
 Lugdunum Batavorum is spurious; Roman Lugdunum is actually the very close-by modern town of Katwijk
Katwijk

Media:Nl-Katwijk.ogg is a coastal municipality and town in the province of South Holland in the western Netherlands....
, whereas the Roman settlement near modern Leiden was called Matilo. However, there was a Roman fortress in Leiden in the 4th century.

Leiden formed on an artificial hill at the confluence of the rivers Oude and Nieuwe Rijn (Old and New Rhine). In the oldest reference to this, from circa 860, the settlement was called Leithon. The landlord of Leiden, situated in a stronghold on the hill, was initially subject to the Bishop of Utrecht but around 1100 the burgrave
Burgrave

A burgrave is a count of a castle or fortified town. The English language form is derived through the French language from the German language Burggraf and Dutch language) burg- or burch-graeve ....
s became subject to the county of Holland. This county got its name in 1101 from a domain near the stronghold: Holtland or Holland.

Leiden was sacked in 1047 by Emperor Henry III
Henry III, Holy Roman Emperor

Henry III , called the Black or the Pious, was a member of the Salian Dynasty of Holy Roman Empire. He was the eldest son of Conrad II, Holy Roman Emperor and Gisela of Swabia and his father made him duke of Bavaria in 1026, after the death of Henry V, Duke of Bavaria....
. Early 13th century, Ada, Countess of Holland
Ada, Countess of Holland

Ada was countess of Count of Holland between 1203 and 1207.She was the only surviving daughter of Dirk VII, Count of Holland and his wife Adelaide of Cleves....
 took refuge here when she was fighting in a civil war against her uncle, William I, Count of Holland
William I, Count of Holland

William I , Count of Holland from 1203 to 1222. He was the younger son of Floris III, Count of Holland and Ada of Scotland....
. He besieged the stronghold and captured Ada.

Leiden received city rights
City rights in the Netherlands

City rights are a medieval phenomenon in the history of the Low Countries. A liegelord, usually a count, duke or similar member of high nobility, granted a settlement he owned certain town privileges that settlements without city rights did not have....
 in 1266. In 1389, its population had grown to about 4000 persons.

Siege of 1420

In 1420, during the Hook and Cod wars
Hook and Cod wars

The Hook and Cod wars comprise a series of wars and battles in Holland between 1350 and 1490. Most of these wars were fought over the title of count of Holland, but some have argued that the underlying reason was because of the power struggle of the bourgeois in the cities against the ruling nobility....
, Duke John of Bavaria
John III, Duke of Bavaria-Straubing

John III the Pitiless, Duke of Bavaria-Straubing of the House of Wittelsbach was first bishop of Li?ge 1389-1418 and then duke of Bavaria-Straubing and count of Holland and County of Hainaut 1418-1425....
 along with his army marched from Gouda
Gouda

Gouda is a city and municipality in the western Netherlands, in the province of South Holland. Gouda, which was granted City rights in the Netherlands in 1272, is famous for its Gouda cheese, smoking pipes and its 15th century city hall....
 in the direction of Leiden in order to conquer the city since Leiden did not pay the new Count of Holland
Count of Holland

The Counts of Holland ruled over the county of Holland in the Low Countries between the 10th and the 16th century....
 Jacqueline, Countess of Hainaut
Jacqueline, Countess of Hainaut

Jacqueline of Wittelsbach was Duchess of Bavaria-Straubing, Count of Hainaut and Count of Holland from 1417 to 1432.She was the only daughter of William VI, Count of Holland from his marriage with Margaret of Burgundy, daughter of Margaret III of Flanders and Philip the Bold....
, his niece and only daughter of Count William VI of Holland
William II, Duke of Bavaria-Straubing

File:Guillaume IV de Hainaut.pngDuke William II of Bavaria-Straubing was also count William VI of Holland, count William IV of County of Hainaut and count William V of Zeeland....
. The army was well equipped and had some guns.

Burgrave Filips of Wassenaar and the other local Hoekse noblemen assumed that the duke would besiege Leiden first and send small units out to conquer the surrounding citadels. But John of Bavaria chose to attack the citadels first.

He rolled the cannons with his army but one too heavy went per ship. By firing at the walls and gates with iron balls the citadels fell one by one. Within a week John of Bavaria conquered the castles of Poelgeest, Ter Does, Hoichmade, de Zijl, ter Waerd, Warmond and de Paddenpoel.

On June 24 the army appeared before the walls of Leiden. On August 17, 1420, after a two-month siege the city surrendered to John of Bavaria. The burgrave Filips of Wassenaar was stripped of his offices and rights and lived out his last years in captivity.

16th and 17th centuries

Leiden flourished in the 16th and 17th century. At the close of the 15th century the weaving
Weaving

Weaving is the textile arts in which two distinct sets of yarn, called the Warp and the filling or weft , are interlaced with each other to form a textile....
 establishments (mainly broadcloth
Broadcloth

Broadcloth is a dense woolen textile. Modern broadcloth can be composed of cotton, silk, or polyester, but traditionally broadcloth was made solely of wool....
) of Leiden were very important, and after the expulsion of the Spaniards Leiden cloth, Leiden baize
Baize

Baize is a coarse woollen cloth, sometimes called "felt" in American English based on a similarity in appearance.It is most often used on Billiard tables to cover the and ....
 and Leiden camlet
Camlet

Camlet, also commonly known as camelot or camblet, is a woven Textile that might have originally been made of camel hair or goat's hair, now chiefly of goat's hair and silk, or of wool and cotton....
 were familiar terms. In the same period, Leiden developed an important printing and publishing industry. The influential printer Christoffel Plantijn lived there at one time. One of his pupils was Lodewijk Elzevir
Lodewijk Elzevir

Lodewijk Elzevir , originally Lodewijk or Louis Elsevier or Elzevier, was a significant Holland printer. He was the founder of the House of Elzevir, which printed, for example, the work of Galileo, at a time when his work was suppressed for religious reasons....
 (1547–1617), who established the largest bookshop and printing works in Leiden, a business continued by his descendants
House of Elzevir

Elzevir is the name of a celebrated family of Netherlands booksellers, publishers, and printers of the 17th and early 18th centuries. Although it appears the family was involved with the book trade as early as the 16th century, it is only known for its work in some detail beginning with Lodewijk Elzevir ....
 through 1712 and the name subsequently adopted (in a variant spelling) by contemporary publisher Elsevier
Elsevier

Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the United Kingdom, USA and elsewhere....
.

In 1572, the city sided with the Dutch revolt against Spanish
Spain

Spain or the Kingdom of Spain , is a country located in Southern Europe on the Iberian Peninsula.The Spanish constitution does not establish any official denomination of the country, even though Espa?a , Estado espa?ol and Naci?n espa?ola are used interchangeably....
 rule and played an important role in the Eighty Years' War. Besieged from May until October 1574 by the Spanish, Leiden was relieved by the cutting of the dikes, thus enabling ships to carry provisions to the inhabitants of the flooded town. As a reward for the heroic defence of the previous year, the University of Leiden was founded by William I of Orange in 1575. Yearly on October 3, the end of the siege is still celebrated in Leiden. Tradition tells that the citizens were offered the choice between a university and a certain exemption from taxes.

Leiden is also known as the place where the Pilgrims
Pilgrims

Pilgrims, or Pilgrim Fathers , is a name commonly applied to the early settlers of the Plymouth Colony in present-day Plymouth, Massachusetts....
 (as well as some of the first settlers of New Amsterdam
New Amsterdam

New Amsterdam was a 17th-century Dutch colonization of the Americas settlement that later became New York City.The town developed outside of Fort Amsterdam on Manhattan Island in the New Netherland Territory which was situated between 38 and 42 degrees latitude as a provincial extension of the Dutch Republic as of 1624....
) lived (and operated a printing press) for a time in the early 17th century before their departure to Massachusetts and New Amsterdam in the New World
New World

The New World is one of the names used for the non-Eurasian/non-African parts of the Earth, specifically the Americas and Australasia. When the term originated in the late 15th century, the Americas were new to the Europeans, who previously thought of the world as consisting only of Europe, Asia, and Africa ....
 .

In the 17th century, Leiden prospered, in part because of the impetus to the textile industry by refugees from Flanders
Flanders

Flanders is a geographical region located in parts of present-day Belgium, France, and the Netherlands. Over the course of history, the geographical territory that was called "Flanders" has varied....
. While the city had lost about a third of its 15,000 citizens during the siege of 1574, it quickly recovered to 45,000 inhabitants in 1622, and may have come near to 70,000 circa 1670. During the Dutch Golden Era, Leiden was the second largest city of Holland, after Amsterdam.

From the late 17th century onwards Leiden slumped, mainly because of decline of the cloth industries. In the beginning of the 19th century the baize manufacture was altogether given up, although industry remained central to Leiden economy. This decline is painted vividly by the fall in population. The population of Leiden had sunk to 30,000 between 1796 and 1811, and in 1904 was 56,044.

19th and 20th century

On 12 January 1807, a catastrophe struck the city when a boat loaded with 17,400 kg of gunpowder blew up in the middle of Leiden. 151 persons were killed, over 2000 were injured and some 220 homes were destroyed. King Louis Bonaparte
Louis Bonaparte

Louis Napol?on Bonaparte, Prince Fran?ais, King of Holland, Comte de Saint-Leu-la-For?t was the fifth surviving child and fourth surviving son of Carlo Buonaparte and Letizia Ramolino....
 personally visited the city to provide assistance to the victims. Although located in the center of the city, the area destroyed remained empty for many years. In 1886 the space was turned into a public park.

In 1842, the railroad from Leiden to Haarlem was inaugurated and one year later the railway to Den Haag
Den haag

Den Haag may refer to:* The Hague, a city in the Netherlands* Den Haag , a novel written by South Korean author Ho Soo Kim...
 was completed, resulting in some improvements to the social and economic situation. But the number of citizens was still not much above 50000 in 1900. Not until 1896 did Leiden begin to expand beyond its 17th century moats. After 1920, new industries were established in the city, such as the canning
Canning

File:Berthold Weiss Canned Foods.jpgFile:Canned food factory .jpgCanning is a method of food preservation in which the food is processed and sealed in an airtight container....
 and metal industries.

During World War II
World War II

World War II, or the Second World War , was a global military conflict which involved a Participants in World War II, including all of the great powers, organised into two opposing military alliances: the Allies of World War II and the Axis powers....
, Leiden was hit hard by Allied bombardments. The areas surrounding the railway station and Marewijk were almost completely destroyed.

Leiden today

Leiden West Gate
Today Leiden forms an important part of Dutch history. The end of the Spanish siege in 1574 is celebrated on 3 October by an annual parade, a day off, a fair and eating the traditional food of herring and white bread and hutspot
Hutspot

Hutspot is a dish of boiled and mashed potato, carrots and onions with a long history in traditional Dutch cuisine....
. However, the most important piece of Dutch history contributed by Leiden was the Constitution of the Netherlands
Constitution of the Netherlands

The Constitution of the Netherlands is the fundamental law of the European territory of the Kingdom of the Netherlands. The present constitution is generally seen as directly derived from the one issued in 1815, constituting a constitutional monarchy....
. Johan Rudolf Thorbecke
Johan Rudolf Thorbecke

was one of the most important Netherlands politicians. In 1848, he virtually singlehandedly drafted the revision of the Constitution of the Netherlands, giving less power to the king, and more to the parliament....
 (1798–1872) wrote the Dutch Constitution in April 1848 in his house at Garenmarkt 9 in Leiden.

Leiden has important functions as a shopping and trade center for communities around the city. The University of Leiden is famous for its many developments including the famous Leyden jar
Leyden jar

The Leyden jar, or Leiden jar, is a device that "stores" static electricity between two electrodes on the inside and outside of a jar. It was invented in 1745 by Pieter van Musschenbroek , in Leiden, The Netherlands....
, a capacitor made from a glass jar, invented in Leiden by Pieter van Musschenbroek
Pieter van Musschenbroek

Pieter van Musschenbroek was a Netherlands scientist. He was a professor in Duisburg, Utrecht , and Leiden, where he held positions in mathematics, philosophy, medicine, and astrology....
 in 1746. (It was actually first invented by Ewald Georg von Kleist
Ewald Jόrgen Georg von Kleist

Ewald Georg von Kleist was a Germany jurist, Lutheranism, and physicist.A member of the von Kleist family, Ewald was born in Wicewo in Farther Pomerania....
 in Germany the year before, but the name "Leyden jar" stuck.) Another development was in cryogenics
Cryogenics

In physics, cryogenics is the study of the production of very low temperature and the behavior of materials at those temperatures. Rather than the familiar temperature scales of Fahrenheit and Celsius, cryogenicists use the Kelvin scales....
: Heike Kamerlingh Onnes
Heike Kamerlingh Onnes

Heike Kamerlingh Onnes was a Netherlands physicist. His scientific career was spent exploring extremely cold refrigeration techniques and the associated phenomena....
 (1913 Nobel prize winner in physics
Nobel Prize in Physics

The Nobel Prize in Physics is awarded once a year by the Royal Swedish Academy of Sciences. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895 and awarded since 1901; the others are the Nobel Prize in chemistry, Nobel Prize in literature, Nobel Peace Prize, and Nobel Prize in physiology or medicine....
) liquefied helium
Helium

Helium is a colorless, odorless, tasteless, non-toxic, inert monatomic chemical element that heads the noble gas group in the periodic table and whose atomic number is 2....
 for the first time (1908) and later managed to reach a temperature of less than one degree above the absolute minimum
Absolute zero

Absolute zero is a temperature marked by a 0 entropy configuration. It is the coldest temperature theoretically possible, and cannot be reached, by artificial or natural means....
. Albert Einstein also spent some time at Leiden University during his early to middle career.

Rivers, canals and parks

The two branches of the Old Rhine, which enter Leiden on the east, unite in the centre of the town. The town is further intersected by numerous small canal
Canal

Canals are artificial channels for water. There are two types of canals: Aqueduct canals, which are used for the conveyance and delivery of water, and waterways, which are navigable transportation canals used for passage of goods and people, often connected to existing lakes, rivers, or oceans....
s with tree-bordered quay
Quay

A quay is a wharf or bank where ships and other vessels are loaded. A quay may be constructed parallel or perpendicular to the bank of a waterway....
s. On the west side of the town, the Hortus Botanicus
Hortus Botanicus Leiden

The Hortus Botanicus of Leiden is the oldest botanical garden of the Netherlands, and one of the oldest in the world. It is located in the southwestern part of the historical centre of the city, between the Academy building and the Leiden Observatory....
 and other gardens extend along the old Singel
Singel

Singel is an old Dutch word meaning a circle , and hence is the name of a number of circular canals in the Netherlands.*Singel *Singelgracht ...
, or outer canal. The Van der Werff Park
Park

A park is a Environmental protection, in its natural or semi-natural state or planted, and set aside for human recreation and enjoyment....
 is named after the mayor Pieter Adriaanszoon van der Werff, who defended the town against the Spaniards in 1574. The town was beleaguered for months and many died from famine. According to legend van der Werff was accused by a frantic crowd of secretly hiding food reserves. He denied this vehemently and to prove his sincerity offered to cut off his arm to serve as food for those who nearly died from famine. This made people back off, ashamed of their mistrust. The open space for the park was formed by the accidental explosion
Explosion

An explosion is a sudden increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases....
 of a ship loaded with gunpowder
Gunpowder

Gunpowder, also called black powder, is an explosive mixture of sulfur, charcoal and potassium nitrate, KNO3 that burns rapidly, producing volumes of hot solids and gases which can be used as a propellant in firearms and as a pyrotechnic composition in fireworks....
 in 1807, which destroyed hundreds of houses, including that of the Elsevier
Elsevier

Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the United Kingdom, USA and elsewhere....
 family of printers
Printer (publisher)

A printer is a company that provides commercial printing services, often also offering typesetting and book-binding services. The term can also refer to people who operate printing presses, or who run printing companies....
.

Buildings of interest

Because of the economic decline from the 17th to the early 20th century, much of the 16th and 17th century town centre is still intact.

Fortifications

At the strategically important junction of the two arms of the Old Rhine stands the old castle
Castle

A castle is a defensive structure seen as one of the main symbols of the Middle Ages. The term has a history of scholarly debate surrounding its exact meaning, but it is usually regarded as being distinct from the general terms fort or fortress in that it describes a residence of a monarch or noble and commands a specific defensive territor...
 De Burcht, a circular tower built on an earthen mound. The mound probably was a refuge against high water before a small wooden fortress was built on top of it in the 11th century. The citadel is a so-called motte-and-bailey
Motte-and-bailey

A motte-and-bailey is a form of castle. Many were built in Britain in the Middle Ages, Ireland and France in the 11th and 12th centuries, favoured as a relatively cheap but effective defensive fortification that could repel most small attack forces....
 castle. Of Leiden's old city gate
City Gate

Moshe Aviv Tower , is a skyscraper located in the demarcated area of the Diamond Exchange District on Jabotinsky Road in northern Ramat Gan, Israel....
s only two are left, the Zijlpoort and the Morspoort, both dating from the end of the 17th century. Apart from one small watch tower on the Singel nothing is left of the town's city walls. Another former fortification
Fortification

Fortifications are military constructions and buildings designed for defense in warfare and military bases. Humans have constructed defensive works for many thousands of years, in a variety of increasingly complex designs....
 is the Gravensteen. Built as a fortress in the 13th century it has since served as house, library and prison. Presently it is one of the University's buildings.

Churches

Leiden Pieterskerk
The chief of Leiden's numerous churches are the Hooglandsche Kerk (or the church of St Pancras
Saint Pancras

Saint Pancras, in other languages: Sanctus Pancratius ; ????? ?a????t??? ; San Pancrazio ; San Pancracio , was a Roman Empire citizen who converted to Christianity, and was decapitation for his faith at the age of just 14 around the year 304....
, built in the 15th century and containing a monument to Pieter Adriaanszoon van der Werff) and the Pieterskerk
Pieterskerk, Leiden

The Pieterskerk is a late-Gothic architecture church in Leiden dedicated to Saint Peter. In around 1100 the site held the county chapel of the counts of Holland, rebuilt in 1121 - the present building took approximately 180 years to build, starting in 1390....
 (church of St Peter (1315) with monuments to Scaliger
Joseph Justus Scaliger

Joseph Justus Scaliger was a France religious leader and scholar, known for expanding the notion of classical history from Ancient Greece and Ancient Rome history to include Persian Empire, Babylonia , Jewish history and History of ancient Egypt....
, Boerhaave and other famous scholars. From a historical perspective the Marekerk is interesting too. Arent van 's Gravesande designed the church in 1639. Other fine examples of his work in Leiden are De Lakenhal, in which the municipal museum is located, and the Bibliotheca Thysiana
Leiden University Library

Leiden University Library is a library founded in 1575 in Leiden, the Netherlands. It is regarded as a significant place in the development of European culture: it is a part of a small number of cultural centres that gave direction to the development and spread of knowledge during the The Age of Enlightenment....
. The growing town needed another church and the Marekerk was the first church to be built in Leiden (and in Holland) after the Reformation
Protestant Reformation

The Protestant Reformation was a Christian reform movement in Europe. It is thought to have begun in 1517 with Martin Luther's Ninety-Five Theses and may be considered to have ended with the Peace of Westphalia in 1648....
. It is an example of Dutch Classicism
Classicism

File:Nicolas Poussin 055.jpgClassicism, in the The Arts, refers generally to a high regard for classical antiquity, as setting standards for taste which the classicists seeks to emulate....
. In the drawings by Van 's Gravesande the pulpit
Pulpit

File:Convento Cristo Decemebr 2008-18.jpgA pulpit is a small elevated platform from which a member of the clergy delivers a Sermon in a house of worship....
 is the centrepiece of the church. The pulpit is modelled after the one in the Nieuwe Kerk at Haarlem
Haarlem

, in the past usually 'Harlem' in English, is a city in the Netherlands. It is also the Capital of the province of North Holland, the northern half of Holland, which at one time was one of the most powerful of the seven provinces of the Dutch Republic....
 (designed by Jacob van Campen
Jacob van Campen

Jacob van Campen was a Netherlands artist and architect of the Dutch Golden Age....
). The building was first used in 1650, and is still in use.

University buildings

Leiden Old Observatory
The town centre contains many buildings that are in use by the University of Leiden. The Academy Building is housed in a former 16th century convent
Convent

A convent may refer to a community of priests, religious brothers, religious sisters, or nuns, or it may refer to the building used by the community, particularly in the Roman Catholic Church and in the Anglican Communion....
. Among the institutions connected with the university are the national institution for East Indian languages, ethnology
Ethnology

Ethnology is the branch of anthropology that compares and analyzes the origins, distribution, technology, religion, language, and social structure of the ethnicity, Race , and/or national divisions of humanity....
 and geography
Geography

Geography is the study of the Earth and its lands, features, inhabitants, and phenomena. A literal translation would be "to describe or write about the Earth"....
; the botanical gardens
Hortus Botanicus Leiden

The Hortus Botanicus of Leiden is the oldest botanical garden of the Netherlands, and one of the oldest in the world. It is located in the southwestern part of the historical centre of the city, between the Academy building and the Leiden Observatory....
, founded in 1587; the observatory
Leiden Observatory

Leiden Observatory is an astronomy observatory in the city of Leiden in the Netherlands. It was established by Leiden University in 1633, to house the quadrant of Snellius, and is the oldest operating University observatory in the world ....
 (1860); the museum of antiquities (Rijksmuseum van Oudheden
Rijksmuseum van Oudheden

The Rijksmuseum van Oudheden is the national archaeology museum of The Netherlands. It is located in Leiden. The Museum grew out of the collection of Leiden University and still closely co-operates with its Faculty of Archaeology....
); and the ethnographical
Ethnography

Ethnography is a genre of writing that uses fieldwork to provide a descriptive study of human societies. Ethnography presents the results of a holism research method founded on the idea that a system's properties cannot necessarily be accurately understood independently of each other....
 museum, of which P. F. von Siebold
Philipp Franz von Siebold

Philipp Franz Balthasar von Siebold was a German physician. He emerged as the first European to teach Western medicine in Japan. He obtained significance for his study of Japanese flora and fauna that were endemic to the unique biotic island landscape....
's 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....
ese collections was the nucleus (Rijksmuseum voor Volkenkunde
National Museum of Ethnology

The National Museum of Ethnology, also known as the Rijksmuseum voor Volkenkunde , in the Netherlands is located in the university city of Leiden....
). The Bibliotheca Thysiana
Leiden University Library

Leiden University Library is a library founded in 1575 in Leiden, the Netherlands. It is regarded as a significant place in the development of European culture: it is a part of a small number of cultural centres that gave direction to the development and spread of knowledge during the The Age of Enlightenment....
 occupies an old Renaissance
Renaissance

The Renaissance was a cultural movement that spanned roughly the 14th to the 17th century, beginning in Italy in the late Middle Ages and later spreading to the rest of Europe....
 building of the year 1655. It is especially rich in legal works and vernacular
Vernacular

Vernacular refers to the native language of a country or a locality. In general linguistics, it is used to describe local languages as opposed to Lingua franca, official standards or global languages....
 chronicles. Noteworthy are also the many special collections at Leiden University Library
Leiden University Library

Leiden University Library is a library founded in 1575 in Leiden, the Netherlands. It is regarded as a significant place in the development of European culture: it is a part of a small number of cultural centres that gave direction to the development and spread of knowledge during the The Age of Enlightenment....
 among which those of the Society of Dutch Literature (1766) and the collection of casts and engravings. In recent years the university has built the Bio Science Park at the city's outskirts to accommodate the Science departments.

Other buildings

Some other interesting buildings are the town hall (Stadhuis), a 16th century building that was badly damaged by a fire in 1929 but has its Renaissance facade designed by Lieven de Key
Lieven de Key

Lieven de Key was a famous architect in the Netherlands. He became city architect of Haarlem in 1592.Buildings he designed:* the Stads Timmerhuis in Leiden...
 still standing; the Gemeenslandshuis van Rynland (1596, restored in 1878); the weigh house (Waag), built by Pieter Post
Pieter Post

Pieter Jansz Post was a Dutch people architect, Painting and printmaker.Post was the son of a stained-glass painter and the older brother of painter Frans Post....
; the former court-house (Gerecht); a corn-grinding windmill, now home to a museum (Molen de Valk) (1743); the old gymnasium
Gymnasium (school)

A gymnasium is a type of school providing secondary education in some parts of Europe, comparable to English Grammar schools in the United Kingdoms or sixth form colleges and U.S....
 (Latijnse School) (1599) and the city carpenter's yard and wharf
Wharf

A wharf is a landing place or pier where ships may tie up and load or unload.A wharf commonly comprises a fixed platform, often on pile. They often serve as interim storage areas with warehouses, since the typical objective is to unload and reload vessels as quickly as possible....
 (Stadstimmerwerf) (1612), both built by Lieven de Key
Lieven de Key

Lieven de Key was a famous architect in the Netherlands. He became city architect of Haarlem in 1592.Buildings he designed:* the Stads Timmerhuis in Leiden...
 (c. 1560–1627). Another building of interest is the "pesthuis", which was built at that time just outside the city for curing patients suffering the bubonic plague
Bubonic plague

Plague is a deadly infectious disease caused by the Enterobacteriaceae Yersinia pestis . Plague is a zoonotic, primarily carried by rodents and spread to humans via fleas....
. However, after it was built the feared disease did not occur in the Netherlands anymore so it was never used for its original purpose, it now serves as the entrance of Naturalis
Naturalis

The National Natural History Museum, or Naturalis, is the national natural history museum for the Netherlands, based in Leiden. It originated from the merger of the Rijksmuseum van Natuurlijke Historie and the Rijksmuseum van Geologie en Mineralogie in 1984....
, one of the largest natural history
Natural history

Natural history is the scientific research of plants or animals, leaning more towards the observational than experimental methods of study, and encompasses more research that is published in magazines than in academic journals....
 museums in the world. Oudt Leyden, the so called oldest pancake house (pannekoekenhuis in Dutch
Dutch language

Dutch is a West Germanic languages spoken by over 22 million people as a first language, and about 5 million people as a second language."1% of the EU population claims to speak Dutch well enough in order to have a conversation." Outside the European Union the number of second language speakers of Dutch is very small. Most native...
) in Europe
Europe

Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
 is home to its famous large pancakes and Delft
Delft

See also: Delft, Cape Town, Delft Island Media:Nl-Delft.ogg is a city and municipality in the province of South Holland . It is located in between Rotterdam and The Hague....
 crockery, it's also known for serving the likes of Winston Churchill
Winston Churchill

Sir Winston Leonard Spencer-Churchill, Order of the Garter, Order of Merit, Order of the Companions of Honour, Territorial Decoration, Fellow of the Royal Society, Her Majesty's Most Honourable Privy Council, Queen's Privy Council for Canada was a Politics of the United Kingdom known chiefly for his leadership of the United King...
 and the Dalai Lama
Dalai Lama

The Dalai Lama is a lineage of religious leader of the Gelug school of Tibetan Buddhism and was the political leader of Lhasa-based Tibetan government between the 17th century and 1959....
.

Public transport


Bus lines

  • Connexxion
    Connexxion

    Connexxion is the largest public transport bus company in the Netherlands, operating in the west, middle, east and far northern part of the country....
     Region West:
    • Bus stop
      Bus stop

      A bus stop is a designated place where a public transport bus stops for the purpose of allowing passengers to board or leave a bus....
      s and lines in Leiden: (links to schedules by stop and line)
    • Bus lines with schedules by line in the region


Railway

  • Rail transport
    Rail transport

    Rail transport is the conveyance of passengers and goods by means of wheeled vehicles running along railways . Rail transport is part of the logistics chain, which facilitates international trade and economic growth....
     departure schedules (see also http://www.ns.nl ):
    • Leiden Centraal (ledn):
    • Leiden Lammenschans (ldl):
    • De Vink (dvnk):
  • on Train station
    Train station

    |}A train station, railway station, railroad station, or station yard is a facility at which passengers may board and alight from trains and/or rail-transported freight may be loaded or unloaded....
     Leiden Centraal
  • Light rail
    Light rail

    Light rail or light rail transit is a form of urban rail transit public transportation that generally has a lower capacity and lower speed than Passenger_rail_terminology#Heavy_rail and rapid transit systems, but higher capacity and higher speed than street-running tram systems....
     project (planned to be realised in 2010)



Leiden is on the planned route of the RijnGouweLijn
RijnGouweLijn

The RijnGouweLijn or RGL is a light rail project in South Holland, Netherlands.It will be the first system in the Netherlands where light rail vehicles will partly use heavy rail tracks, sharing these tracks with heavy rail trains, like the tram-train systems around Karlsruhe and Saarbr?cken, Germany....
, the Netherland's first Light rail
Light rail

Light rail or light rail transit is a form of urban rail transit public transportation that generally has a lower capacity and lower speed than Passenger_rail_terminology#Heavy_rail and rapid transit systems, but higher capacity and higher speed than street-running tram systems....
 project. Within Leiden its route would have been: Leiden Lammenschans - Korevaarstraat - Breestraat - stop Haarlemmerstraat - Stationsplein - Joop Walenkamptunnel - Albinusdreef (LUMC) - Sandfortdreef - Zernikedreef (Hogeschool) - (Einsteinweg) - Ehrenfestweg - (Plesmanlaan) - Transferium A44. This route, however, has been rejected by Leiden citizens in a referendum
Referendum

A referendum , ballot question, or plebiscite is a direct vote in which an entire Constituency is asked to either accept or reject a particular proposal....
.

Famous inhabitants

See also People from Leiden
The following is a selection of important Leidenaren throughout history:

  • Johann Bachstrom
    Johann Bachstrom

    Jan Fryderyk or Johann Friedrich Bachstrom, was a writer, scientist and Lutheran theologian who spent the last decade of his life in Leiden....
    , 1688–1742, writer, scientist and Lutherian theologian.
  • Herman Boerhaave
    Herman Boerhaave

    Herman Boerhaave was a Netherlands botanist, Humanism and physician of European fame. He is regarded as the founder of clinical teaching and of the modern academic hospital....
    , 1668–1738, humanist and physician.
  • Bernhard Siegfried Albinus
    Bernhard Siegfried Albinus

    Bernhard Siegfried Albinus was a Germany-born Netherlands anatomist.Albinus was born at Frankfurt , where his father, Bernhard Albinus , was professor of the practice of medicine....
    , 1697–1770, anatomist.
  • William Brewster
    William Brewster

    William Brewster may refer to:*William Brewster , Pilgrim and Mayflower passenger*William Brewster , ornithologist*William K. Brewster, Democratic politician and a retired U.S....
    , 1567–1644, pilgrim.
  • William Bradford
    William Bradford

    William Bradford may refer to:*William Bradford *William Bradford , son of Governor Bradford, military commander of Plymouth during King Philip's War...
    , 1590-1657, pilgrim, leader of the American Plymouth Colony in Massachusetts.
  • Gerard Dou
    Gerard Dou

    Gerard Dou, also known as Gerrit and Douw or Dow , was a Dutch Golden Age painting, whose small, highly-polished paintings are typical of the Leiden fijnschilders....
    , 1613–1675, painter.
  • Jouke de Vries
    Jouke de Vries

    Jouke de Vries is a professor at Leiden University in Leiden.De Vries grew up in the village of Balk in Friesland and in 1979 started his studies in political science at the University of Amsterdam....
    , 1960, professor at Leiden university, runner-up candidate for the PVDA elections in 2002 (lost to Wouter Bos
    Wouter Bos

    Wouter Jacob Bos is the Politics of the Netherlands Ministry of Finance and deputy prime minister. He is political leader of the Labour Party ....
    ), currently recides at Leiden.
  • Cornelius Engelbrechtszoon, 1468–1533, painter.
  • Jan van Goyen
    Jan van Goyen

    Jan Josephszoon van Goyen was a Dutch landscape painter. Van Goyen was an extremely prolific artist; approximately twelve hundred paintings and more than one thousand drawings by him are known....
    , 1596–1656, painter.
  • John of Leiden
    John of Leiden

    John of Leiden , was an Anabaptist leader from the Netherlands city of Leiden. He was the illegitimate son of a Dutch mayor, and a tailor's apprentice by trade....
    , 1509?–1536, leader of the Anabaptist
    Anabaptist

    Anabaptists are Christianity of the Radical Reformation. Various groups at various times have been called Anabaptist, but the term is most commonly used to refer to the Anabaptists of 16th century Europe....
     Mόnster Rebellion
    Mόnster Rebellion

    The M?nster Rebellion was an attempt by radical Anabaptists to establish a theocracy in the Germany city of M?nster. The city became an Anabaptist center from 1534 to 1535, and fell under Anabaptist rule for 18 months — from February 1534, when the city hall was seized and Bernhard Knipperdolling installed as mayor, until its fall in...
    .
  • Philipp Franz Bathasar von Siebold, 1796-1866, physician, collector, 'Japanologist'.
  • Lucas van Leyden
    Lucas van Leyden

    Lucas van Leyden , also named either Lucas Hugensz or Lucas Jacobsz, was a Netherlands engraver and Painting, born and mainly active in Leiden, who was among the first Dutch exponents of genre painting and is generally regarded as one of the finest engraving in the history of art....
    , 1494–1533, engraver and painter.
  • Marinus van der Lubbe
    Marinus van der Lubbe

    Marinus van der Lubbe was a Netherlands Council communism accused of, and eventually executed for, setting fire to the Germany Reichstag on February 27, 1933, an event known as the Reichstag fire....
    , 1909–1934, accused of setting fire to the Reichstag
    Reichstag fire

    The Reichstag fire was an arson attack on the Reichstag building in Berlin on 27 February 1933. The event is seen as pivotal in the establishment of Nazi Germany....
     in Berlin
    Berlin

    Berlin is the Capital of Germany city and one of sixteen States of Germany of Germany. With a population of 3.4 million within its city limits, Berlin is the country's largest city....
    .
  • Gabriel Metsu
    Gabriel Metsu

    Gabriel Metsu , the Netherlands Painting, was the son of the Flemish painter Jacques Metsu , who lived most of his days at Leiden, where he was three times married....
    , 1629–1667, painter.
  • Frans Post
    Frans Post

    Frans Janszoon Post was a Dutch painter. He was the first Europe artist to paint landscapes of the New World.In 1636 he traveled to Dutch Brazil at the invitation of Johan Maurits van Nassau-Siegen, who was governor-general there, at the suggestion of his brother Pieter Post....
    , 1612–1680, painter.
  • Rembrandt van Rijn
    Rembrandt

    Rembrandt Harmenszoon van Rijn was a Netherlands Painting and etching. He is generally considered one of the greatest painters and printmakers in European art history and the most important in History of the Netherlands....
    , 1606–1669, painter.
  • Pieter de Ring
    Pieter de Ring

    Pieter de Ring was probably born in Ypres in Flanders, but the Ypres Archives were destroyed in August 1914. From Ypres the family moved to Leiden, where he became a member of the Guild of Saint Luke....
    , ca 1615-1660, painter
  • Jan Steen
    Jan Steen

    Jan Havickszoon Steen was a The Netherlands Genre works Painting of the 17th century . Psychological insight, sense of humour and abundance of colour are marks of his trade....
    , 1626–1679, painter.
  • Theo van Doesburg
    Theo van Doesburg

    Theo van Doesburg was a Netherlands artist, practicing in painting, writing, poetry and architecture. He is best known as the founder and leader of De Stijl....
    , 1883–1931, painter, architect, writer.
  • Willebrord Snell, 1580–1626, astronomer and mathematician.
  • Johannes Diderik van der Waals
    Johannes Diderik van der Waals

    Johannes Diderik van der Waals was a Dutch physicist and thermodynamicist famous for his work on an equation of state for gases and liquids....
    , 1837–1923, physicist.
  • Hendrik Lorentz
    Hendrik Lorentz

    Hendrik Antoon Lorentz was a Netherlands physicist who shared the 1902 Nobel Prize in Physics with Pieter Zeeman for the discovery and theoretical explanation of the Zeeman effect....
    , 1853–1928, physicist.
  • Heike Kamerlingh Onnes
    Heike Kamerlingh Onnes

    Heike Kamerlingh Onnes was a Netherlands physicist. His scientific career was spent exploring extremely cold refrigeration techniques and the associated phenomena....
    , 1853–1926, physicist.
  • Pieter Zeeman
    Pieter Zeeman

    Pieter Zeeman was a Netherlands physics who shared the 1902 Nobel Prize in Physics with Hendrik Lorentz for his discovery of the Zeeman effect....
    , 1865–1943, physicist.
  • Willem de Sitter
    Willem de Sitter

    Willem de Sitter was a Netherlands mathematician, physicist and astronomer.Born in Sneek, De Sitter studied mathematics at the University of Groningen and then joined the Groningen astronomy laboratory....
    , 1872–1934, mathematician, physicist, astronomer.
  • Paul Ehrenfest
    Paul Ehrenfest

    Paul Ehrenfest was an Austrian physicist and mathematician, who obtained Netherlands citizenship on March 24, 1922. He made major contributions to the field of statistical mechanics and its relations with quantum physics, including the theory of phase transition and the Ehrenfest theorem....
    , 1880–1933, physicist.
  • Hendrik Casimir
    Hendrik Casimir

    Hendrik Brugt Gerhard Casimir was a Netherlands physicist best known for his research on the two-fluid model of superconductors in 1934 and the Casimir effect in 1948....
    , 1909–2000, physicist.
  • Jan Hendrik Oort, 1900–1992, astronomer.
  • Willem Einthoven
    Willem Einthoven

    Willem Einthoven was a Dutch Physician and physiology. He invented the first practical electrocardiogram in 1903 and received the Nobel Prize in Medicine in 1924 for it....
    , 1860–1927, physician, physiologist.
  • Pieter Adriaanszoon van der Werff, 1529–1604, mayor of Leiden.
  • William II, 1228–1256, count of Holland, later also king of Germany.
  • Gottfried van Swieten
    Gottfried van Swieten

    Baron Gottfried van Swieten was a diplomat, librarian, and government official who served the Habsburg Monarchy during the eighteenth century....
    , 1733-1803, diplomat, friendship and collaboration with several great composers.
  • Nina Foch
    Nina Foch

    Nina Foch was an Academy Award-nominated Netherlands-born American actress and leading lady in many 1940s and 1950s films....
    , 1924-2008, actress/ acting teacher


Town twinning

Leiden's twin towns
Town twinning

Town twinning, also known as sister cities, is a concept whereby towns or city in geographically and politically distinct areas are paired, with the goal of fostering human contact and cultural links between their inhabitants....
 are: Buffalo City
Buffalo City Local Municipality

Buffalo City is a municipality situated on the east coast of Eastern Cape Province, South Africa, at the coordinates of .It was established in 2000 after South Africa's re-organisation of municipal areas, and includes East London, South Africa, Bhisho and King William's Town, as well as the large townships of Mdantsane and Zwelitsha....
, South Africa
South Africa

The Republic of South Africa, also known by Official names of South Africa, is a country located at the southern tip of the continent of Africa....
Juigalpa, Nicaragua
Nicaragua

Nicaragua officially the Republic of Nicaragua , is a representative democracy republic. It is the largest state in Central America with an area of 130,000 km2, about the size of the state of New York....
Krefeld
Krefeld

Krefeld , also known as Crefeld until 1929, is a city in North Rhine-Westphalia, Germany. It is located southwest of the Ruhr area, its center just a few kilometres to the west of the River Rhine; the borough of Uerdingen is situated directly on the Rhine....
, Germany
Germany

Germany , officially the Federal Republic of Germany , is a country in Central Europe. It is bordered to the north by the North Sea, Denmark, and the Baltic Sea; to the east by Poland and the Czech Republic; to the south by Austria and Switzerland; and to the west by France, Luxembourg, Belgium, and the Netherlands....
Oxford
Oxford

Oxford is a City status in the United Kingdom, and the county town of Oxfordshire, in South East England. It has a population of 151,000. The rivers River Cherwell and River Thames run through Oxford and meet south of the city centre....
, England
England

native_name =|conventional_long_name = England|common_name = England|image_flag = Flag of England.svg|image_coat = England COA.svg|symbol_type = Royal Coat of Arms...
 (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....
) Torun
Torun

Torun is a city in northern Poland, on the Vistula River, with population over 207,190 as of 2006, making it the second largest city of the Kuyavian-Pomeranian Voivodeship, after Bydgoszcz....
, Poland
Poland

Poland , officially the Republic of Poland , is a country in Central Europe. Poland is bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian Enclave and exclave, to the north....


Miscellaneous

  • The coat of arms of Leiden is two red keys, crossed in an X-shape on a white background. These keys are those to the gates of heaven held by St.Peter, for whom a large church in the city center is named.
  • For a time Leiden held the title "The Coldest Place on Earth": in a laboratory, because of the developments in cryogenics
    Cryogenics

    In physics, cryogenics is the study of the production of very low temperature and the behavior of materials at those temperatures. Rather than the familiar temperature scales of Fahrenheit and Celsius, cryogenicists use the Kelvin scales....
     that have happened there. Heike Kamerlingh Onnes
    Heike Kamerlingh Onnes

    Heike Kamerlingh Onnes was a Netherlands physicist. His scientific career was spent exploring extremely cold refrigeration techniques and the associated phenomena....
     (1913 Nobel prize winner in physics) liquefied helium
    Helium

    Helium is a colorless, odorless, tasteless, non-toxic, inert monatomic chemical element that heads the noble gas group in the periodic table and whose atomic number is 2....
     for the first time (1908), and later managed to reach a temperature of less than one degree above Absolute zero
    Absolute zero

    Absolute zero is a temperature marked by a 0 entropy configuration. It is the coldest temperature theoretically possible, and cannot be reached, by artificial or natural means....
    .
  • The Norwegian cheese "nψkkelost" ("key cheese") is named after the keys in coat of arms of Leyden, as it is a variation of Leyden cheese
    Leyden cheese

    Leyden cheese, known as komijnekaas or Leidsekaas in Dutch language, is a spiced cheese made in the Netherlands from partly skimmed cow's milk....
    .
  • The following places and things are named after this city:
    • Leyden, New York
      Leyden, New York

      Leyden is a town in Lewis County, New York, New York, United States. The population was 1,792 at the 2000 census.The Town of Leyden is in the south part of the county and is north of Rome, New York....
      , USA
    • Leyden, Massachusetts
      Leyden, Massachusetts

      Leyden is a New England town in Franklin County, Massachusetts, Massachusetts, United States. The population was 772 at the 2000 census. It is part of the Springfield, Massachusetts Springfield, Massachusetts metropolitan area....
      , USA
    • Leyden High School District 212
      Leyden High School District 212

      The Leyden High School District 212, named after Leiden, operates two high schools in Cook County, Illinois, United States. The district has 207 teachers serving 3,477 students....
       in Franklin Park, Illinois
      Franklin Park, Illinois

      Franklin Park is a village in Cook County, Illinois, Illinois, United States. The population was 19,800 at the 2004 census....
      , USA.
    • Leiden scale
      Leiden scale

      The Leiden scale was used to calibrate low-temperature indirect measurements in the early twentieth century, by providing conventional values of helium vapour pressure....
      , for measuring extreme low temperatures.
    • Factor V Leiden
      Factor V Leiden

      Factor V Leiden is the name given to a variant of human factor V that causes a thrombophilia disorder. In this disorder the Leiden variant of factor V, cannot be inactivated by activated protein C....
       is named after the city of Leiden where it was discovered in 1994.
    • The Leyden jar
      Leyden jar

      The Leyden jar, or Leiden jar, is a device that "stores" static electricity between two electrodes on the inside and outside of a jar. It was invented in 1745 by Pieter van Musschenbroek , in Leiden, The Netherlands....
      , a capacitor
      Capacitor

      A capacitor or condenser is a Passive component electronic component consisting of a pair of electrical conductor separated by a dielectric....
       made from a glass jar, was invented here by Pieter van Musschenbroek
      Pieter van Musschenbroek

      Pieter van Musschenbroek was a Netherlands scientist. He was a professor in Duisburg, Utrecht , and Leiden, where he held positions in mathematics, philosophy, medicine, and astrology....
       in 1746. It was actually first invented by Ewald Georg von Kleist the year before, but the name "Leyden jar" stuck.


See also

  • Wireless Leiden
    Wireless Leiden

    Wireless Leiden is a wireless community network in Leiden, Netherlands.The Wireless Leiden Foundation has set up a WiFi Wireless network in Leiden , only with the help of volunteers, with some financial support by sponsors....
  • Leiden Classical
    Leiden Classical

    Leiden Classical is a distributed computing project run by the Theoretical Chemistry Department of the Leiden Institute of Chemistry at Leiden University in Leiden, the Netherlands....
      A distributed computing project


External links

  • (note that one quarter is partly in one town part, partly in another one)
  • (pdf) - with (towards the end) a map showing the neighborhoods and (a few pages further) the population figures etc. as well as the grouping into quarters
  • Entries for Leiden in Gazetteers:


Museums and libraries

  • Municipal Museum
  • National Museum of Antiquities
    Archaeology

    Archaeology, archeology, or arch?ology is the science that studies Homo cultures through the recovery, documentation, analysis, and interpretation of material remains and environmental data, including architecture, Artifact , features, Biofact s, and cultural landscape....
  • National Museum of Natural History
  • National Museum of Ethnology
    Ethnology

    Ethnology is the branch of anthropology that compares and analyzes the origins, distribution, technology, religion, language, and social structure of the ethnicity, Race , and/or national divisions of humanity....
  • National Museum of the History of Science
    Science

    In its broadest sense, science refers to any systematic knowledge or practice. In its more usual restricted sense, science refers to a system of acquiring knowledge based on scientific method, as well as to the organized body of knowledge gained through such research....
     and Medicine
    Medicine

    Medicine is the art and science of healing. It encompasses a range of health care practices evolved to maintain and restore health by the prevention and treatment of illness....
  • Museum Windmill
    Windmill

    A windmill is a machine that is powered by the energy of the wind. It is designed to convert the energy of the wind into more useful forms using rotating blades or sails....
  • Hortus Botanicus Leiden
    Hortus Botanicus Leiden

    The Hortus Botanicus of Leiden is the oldest botanical garden of the Netherlands, and one of the oldest in the world. It is located in the southwestern part of the historical centre of the city, between the Academy building and the Leiden Observatory....
  • of the historical Pilgrims of early 17th C. New England
  • National Museum of Coin
    Coin

    A coin is a piece of hard material, usually metal or a metallic material, usually in the shape of a Disk , and most often issued by a government....
    s and Medal
    Medal

    A medal is usually a coin-like sculpted object of metal or other material that has been engraved with an insignia, portrait or other artistic rendering....
    s
  • Leiden University Library
    Leiden University Library

    Leiden University Library is a library founded in 1575 in Leiden, the Netherlands. It is regarded as a significant place in the development of European culture: it is a part of a small number of cultural centres that gave direction to the development and spread of knowledge during the The Age of Enlightenment....
  • Opened on March 14th 2008.


Region



Adjacent municipalities

Clockwise:
  • Oegstgeest
    Oegstgeest

    Media:Nl-Oegstgeest.ogg is a town and municipality in the province of South Holland in the western Netherlands....
  • Teylingen
    Teylingen

    Teylingen is a municipality in the province of South Holland, the Netherlands. It was created on January 1, 2006, through the amalgamation of Sassenheim, Voorhout, and Warmond....
  • Leiderdorp
    Leiderdorp

    Media:Nl-Leiderdorp.ogg is a town and municipality in the western Netherlands, in the province of South Holland near the city of Leiden.The municipality covers an area of 12.29 km? of which 0.56 km? is water....
  • Zoeterwoude
    Zoeterwoude

    Zoeterwoude is a municipality in the western Netherlands, in the province of South Holland. The municipality covers 21.91 km? . It had a population of 8,526 in 2004....
  • Leidschendam-Voorburg
    Leidschendam-Voorburg

    Media:Nl-Leidschendam-Voorburg.ogg is a municipality in the western Netherlands, in the province of South Holland. The municipality covers an area of 35.68 km? of which 2.86 km? is water....
  • Voorschoten
    Voorschoten

    Media:Nl-Voorschoten.ogg is a village and municipality in the western Netherlands, in the province of South Holland. It is a smaller town in the Randstad, enclosed by the cities of Leiden and The Hague....
  • Wassenaar
    Wassenaar

    Wassenaar is a town in the western Netherlands, in the province of South Holland. A fairly affluent suburb of The Hague, Wassenaar lies 10 km north of that city on the N44 highway near the North Sea coast....
  • Katwijk
    Katwijk

    Media:Nl-Katwijk.ogg is a coastal municipality and town in the province of South Holland in the western Netherlands....