1054    A supernova is observed by the Chinese, the Arabs and possibly Amerindians near the star Tauri. For several months it remains bright enough to be seen during the day. Its remnants form the Crab Nebula.

1512    The Spanish Crown issues the Laws of Burgos, governing the conduct of settlers with regards to native Indians in the New World.

1997    Acteal massacre: Attendees at a prayer meeting of Roman Catholic activists for indigenous causes in the small village of Acteal in the Mexican state of Chiapas are massacred by paramilitary forces.