1583 in History
January 1 1st day of the Gregorian calendar in Holland and Flanders
January 12 Holland begins use of Gregorian calendar (yesterday was 1/1/1583)
February 21 Groningen Netherlands begins using Gregorian calendar
March 18 Dutch States General and Anjou sign treaty
April 12 William of Orange marries Louise de Coligny
June 17 Brabant: duke of Parma beats French mercenaries
June 18 Richard Martin of London takes out 1st life insurance policy, on William Gibbons, premium was 383 pounds
June 28 Duke French van Valois returns to France
July 17 Spanish and Walloon troops conquer Dunkerk
August 5 Gilbert claims Newfoundland (1st English colony in North America)
November 15 Gelders Earl Willem of the Bergh flees
November 20 Duke of Parma conquerors Aalst