On This Day

What Happened in April 1521

Historical Events

  • Apr 7 Inquisitor-general Adrian Boeyens bans Lutheran books

Event of interestEvent of Interest

Apr 7 Portuguese navigator Ferdinand Magellan's fleet reaches Cebu

Event of interestEvent of Interest

Apr 16 Martin Luther arrives at the Diet of Worms assembly

Founder of Protestanism Martin Luther
Founder of Protestanism
Martin Luther
  • Apr 18 Diet of Worms: Cardinal Alexander questions Martin Luther
  • Apr 21 Battle at Villalar: Emperor Charles I beats Communards
  • Apr 22 French King Francois I declares war on Spain
  • Apr 28 Treaty of Worms: Emperor Charles names his brother Ferdinand Archduke of Netherlands-Austria

Famous Birthdays

  • Apr 18 François de Coligny d'Andelot, French general (Jarnac) and Ruler of van Andelot, born in Châtillon-sur-Loing, France (d. 1569)

Famous Deaths

  • Apr 20 Zhengde, 10th Emperor of the Ming Dynasty, dies at 29
  • Apr 22 Juan de Padilla, Spanish Roman Catholic missionary, killed at 52

Person of interestFerdinand Magellan

Apr 27 Ferdinand Magellan, Portuguese explorer, killed by Filipino natives at 50 while on voyage to circumnavigate the world