1581: Commissioned by Catherine de’ Medici, the first ballet “Ballet Comique de la Reine” is staged in Paris
Pope Gregory XIII with the calendar that was to make his nameGregory Conquers Julius Caesar

1582: Gregorian calendar is introduced in Spain, Portugal and the Papal States, after skipping 10 days from October 4 to sync the calendar to the solar year and compensate for the drift that had occurred due to the Julian calendar having too many leap days

1815: Napoleon Bonaparte arrives on island of St Helena to begin his exile

1969: Vietnam Moratorium Day in the US, millions nationwide protest against the war

1993: Nelson Mandela and South African President F. W. de Klerk awarded the Nobel Peace Prize

Source: Onthisday.com