626: Incident at Xuanwu Gate: in fear of assassination, Li Shimin ambushes and kills his rival brothers Li Yuanji and Li Jiancheng

1776: Continental Congress resolves “these United Colonies are and of right ought to be Free and Independent States”

1823: Bahia Independence Day: the end of Portuguese rule in Brazil, with the final defeat of the Portuguese crown loyalists in the province of Bahia

1964: US President Lyndon B. Johnson signs Civil Rights Act and Voting Rights Act into law

1990: 1,426 pilgrims trampled to death after a panic in a tunnel in Mecca, Saudi Arabia

Source: Onthisday.com