Year by year · 16th century

1521

1521 in world history: 23 events, 5 births, 10 deaths, 2 works, 5 states founded and 1 that came to an end. 1,014 recorded states existed that year.

Events

  1. 3 January

    Pope Leo X excommunicates Martin Luther

    The bull Decet Romanum Pontificem formally cut Martin Luther off from the Catholic Church after he refused to recant. The break hardened the divide that became the Protestant Reformation.

  2. 16 March

    Magellan's expedition reaches the Philippines

    After crossing the Pacific, Ferdinand Magellan's ships sighted Samar and landed at Homonhon. Magellan was killed on Mactan in April, but one ship completed the first circumnavigation in 1522.

  3. 17 April

    Luther is summoned to recant before the Diet of Worms

    Before Emperor Charles V, Martin Luther acknowledged his books but asked for time to answer whether he would retract them. The next day he refused, defying both emperor and Pope.

  4. 27 April

    Ferdinand Magellan is killed on Mactan

    Magellan died fighting the forces of the chief Lapulapu in the Philippines. Under Juan Sebastián Elcano, one ship of his fleet returned to Spain in 1522, completing the first circumnavigation.

  5. 17 May

    Duke of Buckingham is executed for treason

    Edward Stafford, Duke of Buckingham, was beheaded on Tower Hill after a trial for allegedly plotting against Henry VIII. His fall showed how dangerous royal blood had become under the Tudors.

  6. 25 May

    Charles V issues the Edict of Worms against Luther

    The emperor declared Martin Luther an outlaw and banned his writings. Protected by Frederick the Wise at the Wartburg, Luther began translating the New Testament into German.

  7. 13 August

    Tenochtitlan falls to Cortés and his allies

    After a siege of nearly three months, Spanish forces and their Tlaxcalan allies captured Cuauhtémoc and the Aztec capital. Mexico City, capital of New Spain, rose on its ruins.

  8. 11 October

    Pope Leo X names Henry VIII 'Defender of the Faith'

    Pope Leo X granted Henry VIII the title Fidei Defensor for his treatise attacking Martin Luther. Henry later broke with Rome, yet British monarchs still use the title, abbreviated 'F.D.' on coins.

  9. 27 December

    The Zwickau prophets arrive in Wittenberg

    Three men of the Radical Reformation, exiled from Zwickau, arrived in Wittenberg, where their ideas won favour with Andreas Karlstadt and others. The unrest that followed brought Martin Luther back from protective custody at the Wartburg in March 1522.

  10. Battle

    Battle of Villalar

    The Battle of Villalar was fought on 23 April 1521 near Valladolid, where royalist cavalry routed the army of the Castilian Comuneros.

  11. Battle

    Battle of Noáin

    The Battle of Noáin was fought on 30 June 1521 near Pamplona.

  12. Siege

    Siege of Belgrade (1521)

    The Siege of Belgrade in 1521 was the capture of the Hungarian fortress city by the Ottoman sultan Suleiman the Magnificent.

  13. Revolt

    Vijayabahu Kollaya

    The Vijayabahu Kollaya, the "plunder of Vijayabahu", was a palace revolt in 1521 in the Kingdom of Kotte, Sri Lanka, in which three sons of King Vijayabahu VI killed their father, who had favoured another heir.

ProfileState890 states with a known seat in 1521Open the atlas at 1521 →

In the profiles

  • Aztec EmpireTenochtitlan falls after a three-month siege; Cuauhtémoc is captured
  • New SpainTenochtitlan falls to Hernán Cortés and his indigenous allies
  • Crown of CastileThe Comuneros are defeated at the Battle of Villalar
  • Brunei SultanateAntonio Pigafetta describes the water city of Brunei
  • Mesoamerican religionThe fall of Tenochtitlan to the Spanish and their allies ends the Aztec state religion
  • TlaxcalaTlaxcalan forces help take Tenochtitlan, which falls on 13 August

Wars and longer events

Born in 1521 5

Died in 1521 10

Works 2

States founded 5

States that came to an end 1

Great speeches

All years → The 16th century →

Cite this page
APA
The Epoch Institute. (2026). 1521. In The Epoch Institute, Year by Year. https://the-epoch-institute.org/years/1521
MLA
“1521.” The Epoch Institute, Year by Year, The Epoch Institute, 2026, https://the-epoch-institute.org/years/1521. Accessed .
Chicago
The Epoch Institute. “1521.” The Epoch Institute, Year by Year. 2026. https://the-epoch-institute.org/years/1521.
Harvard
The Epoch Institute (2026) ‘1521’, The Epoch Institute, Year by Year. Available at: https://the-epoch-institute.org/years/1521 (Accessed: ).