1576 events in history

Jan 20 The Mexican city of León is founded by order of the viceroy Don Martín Enríquez de Almanza
Feb 5 Henry of Navarre abjures Catholicism at Tours and rejoins the Protestant forces in the French Wars of Religion
Mar 8 Spanish explorer Diego García de Palacio first sights the ruins of the ancient Mayan city of Copán
May 1 Stephen Báthory, the reigning Prince of Transylvania, marries Anna Jagiellon and they become co-rulers of the Polish–Lithuanian Commonwealth
Jul 11 Martin Frobisher sights Greenland
Aug 8 The cornerstone for Tycho Brahe's Uraniborg observatory is laid on Ven, Denmark
Nov 4 Eighty Years' War: In Flanders, Spain captures Antwerp (after three days the city is nearly destroyed)
Nov 8 Eighty Years' War: Pacification of Ghent – The States General of the Netherlands meet and unite to oppose Spanish occupation