March 31307 – After divorcing his wife Minervina, Constantine marries Fausta, daughter of the retired Roman emperor Maximian. 1146 – Bernard of Clairvaux preaches his famous sermon in a field at Vézelay, urging the necessity of a Second Crusade. Louis VII is present, and joins the Crusade. 1492 – Queen Isabella of Castile issues the Alhambra Decree, ordering her 150,000 Jewish and Muslim subjects to convert to Christianity or face expulsion. 1521 – Ferdinand Magellan and fifty of his men came ashore to present-day Limasawa to participate in the first Catholic mass in the Philippines.
October 261185 – The Uprising of Asen and Peter begins on the feast day of St. Demetrius of Thessaloniki and ends with the creation of the Second Bulgarian Empire. 1341 – The Byzantine civil war of 1341–1347 formally begins with the proclamation of John VI Kantakouzenos as Byzantine Emperor. 1377 – Tvrtko I is crowned the first king of Bosnia. 1520 – Charles V is crowned as Holy Roman Emperor. 1597 – Imjin War: Korean Admiral Yi Sun-sin routs the Japanese Navy of 300 ships with only 13 ships at the Battle of Myeongnyang.
April 241479 BC – Thutmose III ascends to the throne of Egypt, although power effectively shifts to Hatshepsut (according to the Low Chronology of the 18th dynasty). 1183 BC – Traditional reckoning of the Fall of Troy marking the end of the legendary Trojan War, given by chief librarian of the Library of Alexandria Eratosthenes, among others. 1547 – Battle of Mühlberg. Duke of Alba, commanding Spanish-Imperial forces of Charles I of Spain, defeats the troops of Schmalkaldic League.
December 30534 – The second and final edition of the Code of Justinian comes into effect in the Byzantine Empire. 999 – Battle of Glenmama: The combined forces of Munster and Meath under king Brian Boru inflict a crushing defeat on the allied armies of Leinster and Dublin near Lyons Hill in Ireland. 1066 – Granada massacre: A Muslim mob storms the royal palace in Granada, crucifies Jewish vizier Joseph ibn Naghrela and massacres most of the Jewish population of the city. 1419 – Hundred Years' War: Battle of La Rochelle.
July 241132 – Battle of Nocera between Ranulf II of Alife and Roger II of Sicily. 1148 – Louis VII of France lays siege to Damascus during the Second Crusade. 1304 – Wars of Scottish Independence: Fall of Stirling Castle: King Edward I of England takes the stronghold using the War Wolf. 1411 – Battle of Harlaw, one of the bloodiest battles in Scotland, takes place. 1412 – Behnam Hadloyo becomes Syriac Orthodox Patriarch of Mardin. 1487 – Citizens of Leeuwarden, Netherlands, strike against a ban on foreign beer.
July 131174 – William I of Scotland, a key rebel in the Revolt of 1173–74, is captured at Alnwick by forces loyal to Henry II of England. 1249 – Coronation of Alexander III as King of Scots. 1260 – The Livonian Order suffers its greatest defeat in the 13th century in the Battle of Durbe against the Grand Duchy of Lithuania 1558 – Battle of Gravelines: In France, Spanish forces led by Count Lamoral of Egmont defeat the French forces of Marshal Paul de Thermes at Gravelines. 1573 – Eighty Years' War: The Siege of Haarlem ends after seven months.
June 51257 – Kraków, in Poland, receives city rights. 1284 – Battle of the Gulf of Naples: Roger of Lauria, admiral to King Peter III of Aragon, destroys the Neapolitan fleet and captures Charles of Salerno. 1288 – The Battle of Worringen ends the War of the Limburg Succession, with John I, Duke of Brabant, being one of the more important victors. 1610 – The masque Tethys' Festival is performed at Whitehall Palace to celebrate the investiture of Henry Frederick, Prince of Wales.
October 19202 BC – Second Punic War: At the Battle of Zama, Roman legions under Scipio Africanus defeat Hannibal Barca, leader of the army defending Carthage. 439 – The Vandals, led by King Gaiseric, take Carthage in North Africa. 1216 – King John of England dies at Newark-on-Trent and is succeeded by his nine-year-old son Henry. 1386 – The Universität Heidelberg holds its first lecture, making it the oldest German university. 1453 – Hundred Years' War: Three months after the Battle of Castillon, England loses its last possessions in southern France.
December 27537 – The second Hagia Sophia in Constantinople is consecrated. 1512 – The Spanish Crown issues the Laws of Burgos, governing the conduct of settlers with regard to native Indians in the New World. 1521 – The Zwickau prophets arrive in Wittenberg, disturbing the peace and preaching the Apocalypse. 1655 – Second Northern War/the Deluge: Monks at the Jasna Góra Monastery in Częstochowa are successful in fending off a month-long siege. 1657 – The Flushing Remonstrance articulates for the first time in North American history that freedom of religion is a fundamental right.
June 241312 BC – Mursili II launches a campaign against the Kingdom of Azzi-Hayasa. 109 – Roman emperor Trajan inaugurates the Aqua Traiana, an aqueduct that channels water from Lake Bracciano, northwest of Rome. 474 – Julius Nepos forces Roman usurper Glycerius to abdicate the throne and proclaims himself Emperor of the Western Roman Empire. 637 – The Battle of Moira is fought between the High King of Ireland and the Kings of Ulster and Dál Riata. It is claimed to be the largest battle in the history of Ireland.
