1140s
| Millennium: | 2nd millennium |
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The 1140s was a decade of the Julian Calendar which began on January 1, 1140, and ended on December 31, 1149.
Events
1140
By area
Europe
- April – Henry Jasomirgott is made count palatine of the Rhine.
- Summer – The Assizes of Ariano are enacted by Roger II of Sicily.
- December 21 – Conrad III of Germany besieges Weinsberg, the stronghold of Welfs.
= Date unknown =
- Roger II of Sicily places the practice of medicine under royal control.
- The town of Lanark in Scotland is made a Royal Burgh, by David I of Scotland.
- Marburg becomes a town.
Asia
- August 21 – Jin–Song Wars: Battle of Yancheng – Song dynasty forces under the command of Yue Fei defeat a numerically superior Jin army led by Wuzhu.
By topic
Religion
- June 3 – Pierre Abelard is condemned for heresy by a church court in Sens, France.
- September 8 – Sephardi Jewish philosopher Judah Halevi, having completed the Kuzari, arrives in Alexandria on a pilgrimage to Palestine.
- The first Cistercian monastery in Spain is founded in Fitero.[1] The order enjoys a rapid expansion in the region in the following 15 years.
- Camaldolite monk Gratian founds the science of Canon law with the publication of the Decretum Gratiani.
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