1521

align="center" colspan=2 | Years:
1518 1519 1520 - 1521 - 1522 1523 1524

align="center" colspan=2 | Decades:
1490s 1500s 1510s - 1520s - 1530s 1540s 1550s

align="center" | Centuries:
15th century - 16th century - 17th century

Events

January 3 - Pope Leo X excommunicates Martin Luther.
January 28 - Diet of Worms begins, lasting until May 25.
March 6 - Ferdinand Magellan discovers Guam.
March 16 - Ferdinand Magellan reaches the Philippines.
April 7 - Ferdinand Magellan arrives at Cebu.
April 17 - 18 - Martin Luther speaks to emperor Charles V and the German Diet of Worms.
April 26 - Martin Luther leaves Worms and disappears for a year - he is rumored to be murdered but really is in hiding.
April 27 - Magellan killed in the Philippines.
May - Outbreak of war between Emperor Charles and the King of France.
May 20 - Battle of Pampeluna.
May 25 - The Diet of Worms ends when Charles V, Holy Roman Emperor issues the Edict of Worms, declaring Martin Luther an outlaw.
June 30 - Battle of Esquiroz - French forces under Henri d'Albret, exiled King of Navarre, are defeated by the Spanish and forced to abandon their attempt to recover Henri's kingdom.
August 8 - Hernan Cortes and allied local Indians defeat Aztec forces of Cuautemoc, the last Aztec Emperor, in the Battle of Tenochtitlan.
August 13 - Emperor Cuauhtmoc surrenders to Hernan Cortes.
August 29 - Capture of Belgrade by the Turkish army of Suleiman I after a brave resistance.
November 23 - Spanish-German-Papal forces under Prosper Colonna force French Marshal Odet de Lautrec to abandon Milan.

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