February 201339 – The Milanese army and the St. George's (San Giorgio) Mercenaries of Lodrisio Visconti clash in the Battle of Parabiago; Visconti is defeated. 1472 – Orkney and Shetland are pawned by Norway to Scotland in lieu of a dowry for Margaret of Denmark. 1521 – Juan Ponce de León sets out from Spain for Florida with about 200 prospective colonists. 1547 – Edward VI of England is crowned King of England at Westminster Abbey. 1685 – René-Robert Cavelier establishes Fort St. Louis at Matagorda Bay thus forming the basis for France's claim to Texas.
April 1527 – Byzantine Emperor Justin I names his nephew Justinian I as co-ruler and successor to the throne. 1081 – Alexios I Komnenos overthrows the Byzantine emperor Nikephoros III Botaneiates, and, after his troops spend three days extensively looting Constantinople, is formally crowned on April 4. 1572 – In the Eighty Years' War, the Watergeuzen capture Brielle from the Seventeen Provinces, gaining the first foothold on land for what would become the Dutch Republic.
June 17653 – Pope Martin I is arrested and taken to Constantinople, due to his opposition to monothelitism. 1242 – Following the Disputation of Paris, twenty-four carriage loads of Jewish religious manuscripts were burnt in Paris. 1397 – The Kalmar Union is formed under the rule of Margaret I of Denmark. 1462 – Vlad III the Impaler attempts to assassinate Mehmed II (The Night Attack at Târgovişte), forcing him to retreat from Wallachia. 1497 – Battle of Deptford Bridge: Forces under King Henry VII defeat troops led by Michael An Gof.
June 10671 – Emperor Tenji of Japan introduces a water clock (clepsydra) called Rokoku. The instrument, which measures time and indicates hours, is placed in the capital of Ōtsu. 1190 – Third Crusade: Frederick I Barbarossa drowns in the river Saleph while leading an army to Jerusalem. 1329 – The Battle of Pelekanon is the last attempt of the Byzantine Empire to retain its cities in Asia Minor. 1358 – Battle of Mello: The peasant forces of the Jacquerie are crushed by the army of the French nobility.
July 5328 – The official opening of Constantine's Bridge built over the Danube between Sucidava (Corabia, Romania) and Oescus (Gigen, Bulgaria) by the Roman architect Theophilus Patricius. 1316 – The Burgundian and Majorcan claimants of the Principality of Achaea meet in the Battle of Manolada. 1594 – Portuguese forces under the command of Pedro Lopes de Sousa begin an unsuccessful invasion of the Kingdom of Kandy during the Campaign of Danture in Sri Lanka. 1610 – John Guy sets sail from Bristol with 39 other colonists for Newfoundland.
May 25567 BC – Servius Tullius, the king of Rome, celebrates a triumph for his victory over the Etruscans. 240 BC – First recorded perihelion passage of Halley's Comet. 1085 – Alfonso VI of Castile takes Toledo, Spain, back from the Moors. 1420 – Henry the Navigator is appointed governor of the Order of Christ. 1521 – The Diet of Worms ends when Charles V, Holy Roman Emperor, issues the Edict of Worms, declaring Martin Luther an outlaw.
May 271096 – Count Emicho enters Mainz, where his followers massacre Jewish citizens. At least 600 Jews are killed. 1120 – Richard III of Capua is anointed as Prince two weeks before his untimely death. 1153 – Malcolm IV becomes King of Scotland. 1199 – John is crowned King of England. 1257 – Richard of Cornwall, and his wife, Sanchia of Provence, are crowned King and Queen of the Germans at Aachen Cathedral. 1644 – Manchu regent Dorgon defeats rebel leader Li Zicheng of the Shun dynasty at the Battle of Shanhai Pass, allowing the Manchus to enter and conquer the capital city of Beijing.
May 171395 – Battle of Rovine: The Wallachians defeat an invading Ottoman army. 1521 – Edward Stafford, 3rd Duke of Buckingham, is executed for treason. 1527 – Pánfilo de Narváez departs Spain to explore Florida with 600 men – by 1536 only four survive. 1536 – George Boleyn, 2nd Viscount Rochford and four other men are executed for treason. 1536 – Henry VIII and Anne Boleyn's marriage is annulled. 1590 – Anne of Denmark is crowned Queen of Scotland. 1642 – Paul de Chomedey, Sieur de Maisonneuve founds the Ville Marie de Montréal.
May 2617 – Germanicus celebrates a triumph in Rome for his victories over the Cherusci, Chatti, and other German tribes west of the Elbe. 451 – Battle of Avarayr between Armenian rebels and the Sasanian Empire takes place. The Sasanids defeat the Armenians militarily but guarantee them freedom to openly practice Christianity. 946 – King Edmund I of England is murdered by a thief whom he personally attacks while celebrating St Augustine's Mass Day. 961 – King Otto I elects his six-year-old son Otto II as heir apparent and co-ruler of the East Frankish Kingdom.
March 10241 BC – First Punic War: Battle of the Aegates: The Romans sink the Carthaginian fleet bringing the First Punic War to an end. 298 – Roman Emperor Maximian concludes his campaign in North Africa and makes a triumphal entry into Carthage. 947 – The Later Han is founded by Liu Zhiyuan. He declares himself emperor. 1496 – After establishing the city of Santo Domingo, Christopher Columbus departs for Spain, leaving his brother in command. 1535 – Spaniard Fray Tomás de Berlanga, the fourth Bishop of Panama, discovers the Galápagos Islands by chance on his way to Peru.
