Editing 1140 (section)

== Events ==
<onlyinclude>

=== By place ===

==== Levant ====
* Spring &ndash; King [[Fulk, King of Jerusalem|Fulk of Jerusalem]] confronts [[Imad al-Din Zengi]], Seljuk ruler (''[[atabeg]]'') of [[Mosul]], near [[Daraa|Dara'a]] in southern [[Bilad al-Sham|Syria]].<ref>David Nicolle (2009). Osprey: Campaign 204. ''The Second Crusade 1148: Disaster outside Damascus'', p. 15. {{ISBN|978-184603-354-4}}.</ref> Turkish forces under [[Mu'in ad-Din Unur|Mu'in al-Din]] (supported by the Crusaders) besiege [[Banias]].

==== Europe ====
* Spring &ndash; King [[Conrad III of Germany|Conrad III]] enfeoffs [[Henry II, Duke of Austria|Henry II]] ('''Jasomirgott'''), a member of the [[Babenberg|House of Babenberg]], with the [[Electoral Palatinate|County Palatine of the Rhine]] (belonging to the [[Holy Roman Empire]]). 
* Summer – King [[Roger II of Sicily|Roger II]] promulgates the [[Assizes of Ariano]] (a series of laws to rule the Norman [[Kingdom of Sicily]]) after the pacification of southern [[Kingdom of Italy (Holy Roman Empire)|Italy]].
* [[December 21]] – [[Siege of Weinsberg]]: Conrad III captures the castle at [[Weinsberg]] during the civil war between the [[Hohenstaufen|Staufers]] and the [[House of Welf|Welfs]] in [[Kingdom of Germany|Germany]].

==== England and Scotland====
* Summer &ndash; King [[Stephen, King of England|Stephen]] appoints [[Geoffrey de Mandeville, Earl of Essex|Geoffrey de Mandeville]] as [[Earl of Essex]] for his support during the civil war against [[Empress Matilda|Matilda]] (Stephen's cousin).
* The town of [[Lanark]] in [[Kingdom of Scotland|Scotland]] is made a [[Royal Burgh]] by King [[David I of Scotland|David I]], giving it merchant privileges relating to government and [[tax]]ation.

==== Asia ====
* [[August 21]] &ndash; [[Jin–Song Wars]] &ndash; [[Battle of Yancheng]]: Chinese forces under the command of [[Yue Fei]] defeat a numerically superior [[Jin dynasty (1115–1234)|Jin]] army led by [[Wuzhu]].

=== By topic ===

==== Religion ====
* [[June 3]] &ndash; [[Pierre Abelard]], a French theologian, is condemned for [[heresy]] by the [[Councils of Sens|Council of Sens]]. He sets out for [[Rome]] to present his defense to Pope [[Pope Innocent II|Innocent II]].
* [[September 8]] &ndash; [[Sephardi Jews|Sephardi Jewish]] philosopher [[Judah Halevi]], having completed the ''[[Kuzari]]'', arrives in [[Alexandria]] on a pilgrimage to [[Palestine (region)|Palestine]].
* The first [[Cistercians|Cistercian]] monastery in [[Spain]] is founded in [[Monastery of Fitero|Fitero]].<ref>{{cite journal|last=Fletcher|first=R. A.|title=Reconquest and Crusade in Spain c. 1050-1150|journal=Transactions of the Royal Historical Society|year=1987|volume=37|series=5|pages=31–47 [45]|doi=10.2307/3679149 |jstor=3679149|s2cid=154629568 }}</ref> The order enjoys a rapid expansion in the region in the following 15 years.

==== Literature ====
* [[Decretum Gratiani#Author|Gratian]], an Italian monk and canon lawyer, founds the science of [[Canon law (Catholic Church)|Canon law]] with the publication of the ''[[Decretum Gratiani]]'' (approximate date).
</onlyinclude>