December 131294 – Saint Celestine V resigns the papacy after only five months to return to his previous life as an ascetic hermit. 1545 – The Council of Trent begins as the embodiment of the Counter-Reformation. 1577 – Sir Francis Drake sets sail from Plymouth, England, on his round-the-world voyage. 1623 – The Plymouth Colony establishes the system of trial by 12-men jury in the American colonies. 1636 – The Massachusetts Bay Colony organizes three militia regiments to defend the colony against the Pequot Indians, a date now considered the founding of the National Guard of the United States.
June 29226 – Cao Rui succeeds his father as emperor of Wei. 1149 – Raymond of Poitiers is defeated and killed at the Battle of Inab by Nur ad-Din Zangi. 1194 – Sverre is crowned King of Norway, leading to his excommunication by the Catholic Church and civil war. 1444 – Skanderbeg defeats an Ottoman invasion force at Torvioll. 1457 – The Dutch city of Dordrecht is devastated by fire 1534 – Jacques Cartier is the first European to reach Prince Edward Island.
July 81099 – Some 15,000 starving Christian soldiers begin the siege of Jerusalem by marching in a religious procession around the city as its Muslim defenders watch. 1283 – Roger of Lauria, commanding the Aragonese fleet, defeats an Angevin fleet sent to put down a rebellion on Malta. 1497 – Vasco da Gama sets sail on the first direct European voyage to India. 1579 – Our Lady of Kazan, a holy icon of the Russian Orthodox Church, is discovered underground in the city of Kazan, Tatarstan.
April 221500 – Portuguese navigator Pedro Álvares Cabral lands in Brazil. 1519 – Spanish conquistador Hernán Cortés establishes a settlement at Veracruz, Mexico. 1529 – Treaty of Zaragoza divides the eastern hemisphere between Spain and Portugal along a line 297.5 leagues () east of the Moluccas. 1809 – The second day of the Battle of Eckmühl: The Austrian army is defeated by the First French Empire army led by Napoleon and driven over the Danube in Regensburg.
March 4AD 51 – Nero, later to become Roman emperor, is given the title princeps iuventutis (head of the youth). 306 – Martyrdom of Saint Adrian of Nicomedia. 852 – Croatian Knez Trpimir I issues a statute, a document with the first known written mention of the Croats name in Croatian sources. 938 – Translation of the relics of martyr Wenceslaus I, Duke of Bohemia, Prince of the Czechs. 1152 – Frederick I Barbarossa is elected King of Germany. 1238 – The Battle of the Sit River begins two centuries of Mongol horde domination of Russia.
May 1028 BC – A sunspot is observed by Han dynasty astronomers during the reign of Emperor Cheng of Han, one of the earliest dated sunspot observations in China. 1291 – Scottish nobles recognize the authority of Edward I of England pending the selection of a king. 1294 – Temür, Khagan of the Mongols, is enthroned as Emperor of the Yuan dynasty. 1497 – Amerigo Vespucci allegedly leaves Cádiz for his first voyage to the New World. 1503 – Christopher Columbus visits the Cayman Islands and names them Las Tortugas after the numerous turtles there.
1775The American Revolutionary War began this year, with the first military engagement being the April 19 Battles of Lexington and Concord on the day after Paul Revere's now-legendary ride. The Second Continental Congress takes various steps toward organizing an American government, appointing George Washington commander-in-chief (June 14), Benjamin Franklin postmaster general (July 26) and creating a Continental Navy (October 13) and a Marine force (November 10) as landing troops for it, but as yet the 13 colonies have not declared independence, and both the British (June 12) and American (July 15) governments make laws.
1760January 9 – Battle of Barari Ghat: Afghan forces defeat the Marathas. January 22 – Seven Years' War – Battle of Wandiwash, India: British general Sir Eyre Coote is victorious over the French under the Marquis de Bussy-Castelnau. January 28 – Benning Wentworth creates the New Hampshire Grant of Pownal, Vermont. February 15 – The British Royal Navy ship HMS Royal Katherine runs aground off Bolt Head in England, with the loss of 699 lives.
1769February 2 – Pope Clement XIII dies, the night before preparing an order to dissolve the Jesuits. February 17 – The British House of Commons votes to not allow MP John Wilkes to take his seat after he wins a by-election. March 4 – Mozart departs Italy, after the last of his three tours there. March 16 – Louis Antoine de Bougainville returns to Saint-Malo, following a three-year circumnavigation of the world with the ships La Boudeuse and Étoile, with the loss of only seven out of 330 men; among the members of the expedition is Jeanne Baré, the first woman known to have circumnavigated the globe.