WHAT HAPPENED IN 1568.
Look what happened the 1568.

Eighty Years' War: Battle of Jemmingen – Fernando Álvarez de Toledo, Duke of Alva defeats Louis of Nassau. (21. July 1568)

Queen Elizabeth I of England orders the arrest of Mary, Queen of Scots. (19. May 1568)

Mary, Queen of Scots, escapes from Loch Leven Castle. (2. May 1568)

Battle of Langside: the forces of Mary, Queen of Scots, are defeated by a confederacy of Scottish Protestants under James Stewart, Earl of Moray, her half-brother. (13. May 1568)

Spanish naval forces rout an English fleet, under the command of John Hawkins, at the Battle of San Juan de Ulúa near Veracruz. (23. September 1568)

The Netherlands declare their independence from Spain. (23. May 1568)

Dutch rebels led by Louis of Nassau, defeat Jean de Ligne, Duke of Arenberg, and his loyalist troops in the Battle of Heiligerlee, opening the Eighty Years' War. (23. May 1568)

The Peace of Longjumeau is signed, ending the second phase of the French Wars of Religion. (23. March 1568)

Mary, Queen of Scots, flees to England. (16. May 1568)