The world in 1212 AD — what happened that year

7 events the sources record for this year, grouped by region.

What happened

The Xia invaded Jiazhou. (History of Jin (Jinshi), Annals 金史卷013 衛紹王崇慶元年3月)
In autumn he besieged the Western Capital (Datong). (History of Yuan (Yuanshi), Annals 元史卷1 太祖 1212年)
He attacked the Western Capital again, but the emperor was struck by an arrow, lifted the siege, and withdrew. (History of Yuan (Yuanshi), Annals 元史卷1 太祖 1212年)
The Jin general Heshilie Jiujin came to relief with 300,000 men, but was crushed at Huan'erzui. (History of Yuan (Yuanshi), Annals 元史卷1 太祖 1212年)
In the first month the Mongols attacked and took Yunzhong, Jiuyuan and other commanderies, and advanced on Fuzhou; Jin ordered the pacification commissioners and others to come to the rescue. (Xu Zizhi Tongjian (Continuation of the Comprehensive Mirror) 권159 正月 단락159.4.0)

Theodore defeats David and takes Heraclea, Amastris and other places. (George Akropolites, History c.11 · L7278-7279)

Mstislav campaigns with the Novgorod forces against the Terma land of the Chud. (Novgorod First Chronicle litopys 기사 1212년)