The world in 644 AD — what happened that year

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

What happened

Kim Yusin, as supreme general, attacked Baekje, won a great victory, and took seven fortresses. (Samguk Sagi (History of the Three Kingdoms) 卷05 善德王 13年)
In October 644 (Jiawu day), Zhang Liang is made Grand Commander of the Pingyang route with 40,000 men from Jiang, Huai, Ling and Xia, 3,000 recruits from Chang'an and Luoyang, and 500 warships, sailing from Laizhou toward Pyongyang; Li Shiji is made Grand Commander of the Liaodong route with 60,000 infantry and cavalry and Xianghu troops; the two armies join and advance. (Zizhi Tongjian (Comprehensive Mirror) 권197 644년 항)

Zhang Liang and Li Shiji were made Grand Generals of the Pyongyang and Liaodong Routes and led the forces of sixteen commanders to attack Goguryeo. (New Book of Tang (Xin Tangshu), Annals 新唐書卷002 太宗貞觀18年11月)
In 644, when Xiangli Xuanjiang reached Pyongyang, the Mahliji had already led his army to attack Silla and broken two castles, and the king of Goguryeo recalled him. (Zizhi Tongjian (Comprehensive Mirror) 권197 644년 항)

The council of six elects Uthman as caliph (Al-Tabari, History of the Prophets and Kings Series I tom.5 sect.1 (Arg.) [india.history.resource.86986], Annus 23~24)
al-Walid's expedition to Azerbaijan and Armenia (Al-Tabari, History of the Prophets and Kings Series I tom.5 sect.1 (Arg.) [india.history.resource.86986], Annus 24)
Invasion of Roman territory (Al-Tabari, History of the Prophets and Kings Series I tom.5 sect.1 (Arg.) [india.history.resource.86986], Annus 24)

Places where the world territory data shows a change of borders in this year.