February 3– Swedish regent Sten Sture dies from his wounds leaving a vacancy on the throne that allows King Christian II of Denmark to conquer Sweden within eight months.[1]
April 2–Juan de Cartagena, formerly captain of the largest ship on the Magellan expedition, San Antonio, escapes captivity from the Victoria and begins a mutiny against Ferdinand Magellan.[5] He is joined by Gaspar de Quesada, captain of the Concepción, and Luis de Mendoza, captain of the Victoria. On the first day of the rebellion, under the pretense of delivering Magellan's letter of surrender to the Victoria, several crew from the Magellan's flagship Trinidad stab Mendoza to death, and the rest of the Victoria crew seizes the mutineers.[5]
April 3– The crew of the San Antonio surrenders to Magellan after being unable to stop drifting in strong winds and being fired at by a cannon, and Gaspar de Quesada surrenders the Concepcion.[5] Four days later, Quesada is beheaded along with other mutineers, while Cartagena is left on an island by Magellan in August.
June 15–Pope Leo X issues the bull Exsurge Domine (Arise O Lord), threatening Martin Luther with excommunication, if he does not recant his position on indulgences and other Catholic doctrines.[12]
July 1–La Noche Triste (Night of Sorrow): The forces of Cuitláhuac, Aztec ruler of Tenochtitlan, gain a major victory against the forces of conquistadorHernán Cortés. This results in the death of about 400 conquistadors, and some 2,000 of their Native American allies. However, Cortés and the most skilled of his men manage to escape and later regroup.
August 11–Ferdinand Magellan maroons the two surviving people who had attempted a mutiny against him, Captain Juan de Cartagena and Father Pedro Sánchez de la Reina, placing them on an island off of the coast of Argentina and providing them with a small supply of ship's biscuits and drinking water. Cartagena and Sanchez are never heard from again.[5]
August 24– The French warrior René of Savoy departs from Marseille on his flagship, Sainte Marie de Bonaventure on a four-month mission to protect the Knights Hospitaller against an attack by the Ottoman Turks.
September 7–Christian II makes his triumphant entry into Stockholm, which had surrendered to him a few days earlier.[17] Sten Sture's widow Christina Gyllenstierna, who has led the fight after Sten's death, and all other persons in the resistance against the Danes, are granted amnesty and are pardoned for their involvement in the resistance.
October 21– The four remaining ships of the Magellan expedition and their crews confirm that they have found the passage that that will be named the Strait of Magellan, the passage between the Atlantic and Pacific Oceans. The crew of the San Antonio, led by Estêvão Gomes elects not to sail into strait and begins journeying back to Spain.[21]
November 7– At the end of the third day of Christian's coronation feast, several leading figures of the Swedish resistance against the Danish invasion are imprisoned, and tried for high treason.[23]
November 9–Stockholm Bloodbath: The execution of 82 Swedish noblemen and clergymen, having been sentenced to death for their involvement in the Swedish resistance against the Danish invasion, is completed after two days of beheading.[24]
Tena, Rafael (2008). El Calendario Mexica y la Cronografía (in Spanish). México, D.F: Instituto Nacional de Antropología e Historia. pp.48, 108. ISBN9789680302932. OCLC704511699.
Bergreen, Laurence (2006). Over the Edge of the World: Magellan's Terrifying Circumnavigation of the Globe (audio book). Blackstone Audio. pp.156, 191–192. ISBN978-0-7927-4395-8. OCLC1011550094.
Przeździecki, Aleksander (1878). Jagiellonki polskie w XVI. wieku (in Polish). Vol.V. Nakładem Konstantego i Gustawa hr. Przezdzieckich. p.21. Retrieved July 23, 2023.