Important Historical Events of the year 621, Year 621 in History

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List of 621 Major News Events in History, Most Important Historical Events in 621

What happened in the year 621?

Date	Event
May 28, 621	Battle of Hulao: Li Shimin, the son of the Chinese emperor Gaozu, defeats the numerically superior forces of Dou Jiande near the Hulao Pass (Henan). This victory decides the outcome of the civil war that followed the Sui dynasty's collapse in favour of the Tang dynasty.