8 events the sources record for this year, grouped by region.
What happened
China (1)
In March 632 (Gengwu day), the Tuyuhun invade Lanzhou, and the prefectural troops strike and drive them off. (Zizhi Tongjian (Comprehensive Mirror) 권194 632년 항)
Korean Peninsula (1)
Using the sound of frogs, they killed five hundred Baekje soldiers hidden in Yeogeun valley in the western suburbs, and also destroyed General Useo and the twelve hundred who followed. (Samguk Yusa (Memorabilia of the Three Kingdoms) 紀異第一 善德王知幾三事)
Japan (1)
In the eighth month of the fourth year, the Tang sends Gao Biaoren to return Mitasu; they moor at Tsushima (Nihon Shoki (Chronicles of Japan) 日本書紀 卷第廿三 舒明紀 4年 단락49)
The apostate Tulayha is defeated by Khalid and flees to Syria (Al-Tabari, History of the Prophets and Kings Series I tom.4 sect.1 (Arg.) [india.history.resource.85701], Annus 11)
Battle of Yamama — Musaylima defeated (Al-Tabari, History of the Prophets and Kings Series I tom.4 sect.1 (Arg.) [india.history.resource.85701], Annus 11 (Argumentum 은 Annus 12 앞에 둠))