May 131373 – Julian of Norwich has visions of Jesus while suffering from a life-threatening illness, visions which are later described and interpreted in her book Revelations of Divine Love. 1501 – Amerigo Vespucci, this time under Portuguese flag, set sail for western lands. 1568 – Mary Queen of Scots is defeated at the Battle of Langside, part of the civil war between Queen Mary and the supporters of her son, James VI. 1612 – Sword duel between Miyamoto Musashi and Sasaki Kojiro on the shores of Ganryū Island.
July 4362 BC – Battle of Mantinea: The Thebans, led by Epaminondas, defeated the Spartans. 414 – Emperor Theodosius II, age 13, yields power to his older sister Aelia Pulcheria, who reigned as regent and proclaimed herself empress (Augusta) of the Eastern Roman Empire. 836 – Pactum Sicardi, a peace treaty between the Principality of Benevento and the Duchy of Naples, is signed. 993 – Ulrich of Augsburg is canonized as a saint. 1054 – A supernova, called SN 1054, is seen by Chinese Song dynasty, Arab, and possibly Amerindian observers near the star Zeta Tauri.
February 27380 – Edict of Thessalonica: Emperor Theodosius I and his co-emperors Gratian and Valentinian II declare their wish that all Roman citizens convert to Nicene Christianity. 425 – The University of Constantinople is founded by Emperor Theodosius II at the urging of his wife Aelia Eudocia. 907 – Abaoji, chieftain of the Yila tribe, is named khagan of the Khitans. 1560 – The Treaty of Berwick is signed by England and the Lords of the Congregation of Scotland, establishing the terms under which English armed forces were to be permitted in Scotland in order to expel occupying French troops.
April 19AD 65 – The freedman Milichus betrays Piso's plot to kill the Emperor Nero and all of the conspirators are arrested. 531 – Battle of Callinicum: A Byzantine army under Belisarius is defeated by the Persians at Raqqa (northern Syria). 1506 – The Lisbon Massacre begins, in which accused Jews are slaughtered by Portuguese Catholics. 1529 – Beginning of the Protestant Reformation: After the Second Diet of Speyer bans Lutheranism, a group of rulers (German: Fürst) and independent cities protests the reinstatement of the Edict of Worms.
October 8314 – Constantine I defeats Roman Emperor Licinius, who loses his European territories. 451 – The first session of the Council of Chalcedon begins. 876 – Frankish forces led by Louis the Younger prevent a West Frankish invasion and defeat emperor Charles II ("the Bald"). 1075 – Dmitar Zvonimir is crowned King of Croatia. 1200 – Isabella of Angoulême is crowned Queen consort of England. 1322 – Mladen II Šubić of Bribir is deposed as the Croatian Ban after the Battle of Bliska.
December 4771 – Austrasian king Carloman I dies, leaving his brother Charlemagne as sole king of the Frankish Kingdom. 963 – The lay papal protonotary is elected pope and takes the name Leo VIII, being consecrated on 6 December after ordination. 1110 – An army led by Baldwin I of Jerusalem and Sigurd the Crusader of Norway captures Sidon at the end of the First Crusade. 1259 – Kings Louis IX of France and Henry III of England agree to the Treaty of Paris, in which Henry renounces his claims to French-controlled territory on continental Europe (including Normandy) in exchange for Louis withdrawing his support for English rebels.
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 1305 – Diocletian and Maximian retire from the office of Roman emperor. 880 – The Nea Ekklesia is inaugurated in Constantinople, setting the model for all later cross-in-square Orthodox churches. 1169 – Norman mercenaries land at Bannow Bay in Leinster, marking the beginning of the Norman invasion of Ireland. 1328 – Wars of Scottish Independence end: By the Treaty of Edinburgh–Northampton, England recognises Scotland as an independent state. 1486 – Christopher Columbus presents his plans discovering a western route to the Indies to the Spanish Queen Isabella I of Castile.
September 12490 BC – Battle of Marathon: The conventionally accepted date for the Battle of Marathon. The Athenians and their Plataean allies defeat the first Persian invasion force of Greece. 372 – Sixteen Kingdoms: Jin Xiaowudi, age 10, succeeds his father Jin Jianwendi as Emperor of the Eastern Jin dynasty. 1213 – Albigensian Crusade: Simon de Montfort, 5th Earl of Leicester, defeats Peter II of Aragon at the Battle of Muret. 1229 – Battle of Portopí: The Aragonese army under the command of James I of Aragon disembarks at Santa Ponça, Majorca, with the purpose of conquering the island.
November 30978 – Franco-German war of 978–980: Holy Roman Emperor Otto II lifts the siege of Paris and withdraws. 1707 – Queen Anne's War: The second Siege of Pensacola comes to end with the failure of the British Empire and their Creek allies to capture Pensacola, Spanish Florida. 1718 – Great Northern War: King Charles XII of Sweden dies during a siege of the fortress of Fredriksten in Norway. 1782 – American Revolutionary War: Treaty of Paris: In Paris, representatives from the United States and Great Britain sign preliminary peace articles (later formalized as the 1783 Treaty of Paris).
