April 21753 BC – Romulus founds Rome (traditional date). 43 BC – Battle of Mutina: Mark Antony is again defeated in battle by Aulus Hirtius, who is killed. Antony fails to capture Mutina and Decimus Brutus is murdered shortly after. 900 – The Laguna Copperplate Inscription (the earliest known written document found in what is now the Philippines): the Commander-in-Chief of the Kingdom of Tondo, as represented by the Honourable Jayadewa, Lord Minister of Pailah, pardons from all debt the Honourable Namwaran and his relations.
March 231400 – The Trần dynasty of Vietnam is deposed, after one hundred and seventy-five years of rule, by Hồ Quý Ly, a court official. 1540 – Waltham Abbey is surrendered to King Henry VIII of England; the last religious community to be closed during the Dissolution of the Monasteries. 1568 – The Peace of Longjumeau is signed, ending the second phase of the French Wars of Religion. 1775 – American Revolutionary War: Patrick Henry delivers his speech – "Give me liberty, or give me death!" – at St.
August 3070 – Titus ends the siege of Jerusalem after destroying Herod's Temple. 1282 – Peter III of Aragon lands at Trapani to intervene in the War of the Sicilian Vespers. 1363 – The five-week Battle of Lake Poyang begins, in which the forces of two Chinese rebel leaders (Chen Youliang and Zhu Yuanzhang) meet to decide who will supplant the Yuan dynasty. 1420 – A 9.4 MS-strong earthquake shakes Chile's Atacama Region causing tsunamis in Chile as well as Hawaii and Japan. 1464 – Pope Paul II succeeds Pope Pius II as the 211th pope.
May 141027 – Robert II of France names his son Henry I as junior King of the Franks. 1097 – The Siege of Nicaea begins during the First Crusade. 1264 – Battle of Lewes: Henry III of England is captured and forced to sign the Mise of Lewes, making Simon de Montfort the effective ruler of England. 1509 – Battle of Agnadello: In northern Italy, French forces defeat the Republic of Venice. 1607 – English colonists establish "James Fort," which would become Jamestown, Virginia, the earliest permanent English settlement in the Americas.
October 32457 BC – Gaecheonjeol, Hwanung (환웅) purportedly descended from heaven. South Korea's National Foundation Day. 52 BC – Gallic Wars: Vercingetorix, leader of the Gauls, surrenders to the Romans under Julius Caesar, ending the siege and battle of Alesia. 42 BC – Liberators' civil war: Triumvirs Mark Antony and Octavian fight to a draw Caesar's assassins Brutus and Cassius in the first part of the Battle of Philippi, where Cassius commits suicide believing the battle is lost.
April 29801 – An earthquake in the Central Apennines hits Rome and Spoleto, damaging the basilica of San Paolo Fuori le Mura. 1091 – Battle of Levounion: The Pechenegs are defeated by Byzantine Emperor Alexios I Komnenos. 1386 – Battle of the Vikhra River: The Principality of Smolensk is defeated by the Grand Duchy of Lithuania and becomes its vassal. 1429 – Joan of Arc arrives to relieve the Siege of Orléans. 1483 – Gran Canaria, the main island of the Canary Islands, is conquered by the Kingdom of Castile.
November 9694 – At the Seventeenth Council of Toledo, Egica, a king of the Visigoths of Hispania, accuses Jews of aiding Muslims, sentencing all Jews to slavery. 1277 – The Treaty of Aberconwy, a humiliating settlement forced on Llywelyn ap Gruffudd by King Edward I of England, brings a temporary end to the Welsh Wars. 1313 – Louis the Bavarian defeats his cousin Frederick I of Austria at the Battle of Gammelsdorf. 1330 – At the Battle of Posada, Basarab I of Wallachia defeats the Hungarian army of Charles I Robert.
November 7335 – Athanasius is banished to Trier, on the charge that he prevented a grain fleet from sailing to Constantinople. 680 – The Sixth Ecumenical Council commences in Constantinople. 921 – Treaty of Bonn: The Frankish kings Charles the Simple and Henry the Fowler sign a peace treaty or 'pact of friendship' (amicitia) to recognize their borders along the Rhine. 1426 – Lam Sơn uprising: Lam Sơn rebels emerge victorious against the Ming army in the Battle of Tốt Động – Chúc Động taking place in Đông Quan, in now Hanoi.
September 15994 – Major Fatimid victory over the Byzantine Empire at the Battle of the Orontes. 1440 – Gilles de Rais, one of the earliest known serial killers, is taken into custody upon an accusation brought against him by Jean de Malestroit, Bishop of Nantes. 1530 – Appearance of the miraculous portrait of Saint Dominic in Soriano in Soriano Calabro, Calabria, Italy; commemorated as a feast day by the Roman Catholic Church 1644–1912. 1556 – Departing from Vlissingen, ex-Holy Roman Emperor Charles V returns to Spain.
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.
