11 events the sources record for this year, grouped by region.
What happened
China (6)
Dozens of bandits claiming to be Maitreya entered Luoyang through Jianguomen to plot a rebellion, and were beheaded by Yang Jian (暕), Prince of Qi. (History of the Northern Dynasties (Beishi), Annals 北史 卷12 大業6年)
On the first morning of the new year, several dozen men calling themselves Maitreya Buddha entered through Jianguo Gate, seized the guards' weapons and plotted a revolt; Yang Jian, Prince of Qi, cut them down. (Book of Sui (Suishu), Imperial Annals 隋書 卷003 帝紀 大業6年1月)
Chen Leng, Commander of the Martial Guards, and others attacked Liuqiu and defeated it, presenting 17,000 captives. (Book of Sui (Suishu), Imperial Annals 隋書 卷003 帝紀 大業6年2月)
In January 610, chieftains of many outlying domains gather at Luoyang, and an elaborate baixi variety show is staged at the Duanmen Gate, with 18,000 performers. (Zizhi Tongjian (Comprehensive Mirror) 권181 610년 항)
Chen Leng and others, pressing their advantage, storm the palisade of Liuqiu, behead its king Kecidou, and bring back more than 10,000 captives. (Zizhi Tongjian (Comprehensive Mirror) 권181 610년 항)
West Asia (4)
The calling of Muhammad: Waraqa ibn Nawfal; Khadija recognized as the first believer. (Al-Tabari, History of the Prophets and Kings Series I tom.3 sect.1 (Arg.) [india.history.resource.87011], 소명 항목)
Second Pledge of al-Aqaba with the men of Medina — twelve representatives (Al-Tabari, History of the Prophets and Kings Series I tom.3 sect.1 (Arg.) [india.history.resource.87011], 소명 항목)