April 27247 – Philip the Arab marks the millennium of Rome with a celebration of the ludi saeculares. 395 – Emperor Arcadius marries Aelia Eudoxia, daughter of the Frankish general Flavius Bauto. She becomes one of the more powerful Roman empresses of Late Antiquity. 711 – Islamic conquest of Hispania: Moorish troops led by Tariq ibn Ziyad land at Gibraltar to begin their invasion of the Iberian Peninsula (Al-Andalus). 1296 – First War of Scottish Independence: John Balliol's Scottish army is defeated by an English army commanded by John de Warenne, 6th Earl of Surrey at the Battle of Dunbar.
September 10506 – The bishops of Visigothic Gaul meet in the Council of Agde. 1419 – John the Fearless, Duke of Burgundy is assassinated by adherents of the Dauphin, the future Charles VII of France. 1509 – An earthquake known as "The Lesser Judgment Day" hits Constantinople. 1515 – Thomas Wolsey is invested as a Cardinal. 1547 – The Battle of Pinkie, the last full-scale military confrontation between England and Scotland, resulting in a decisive victory for the forces of Edward VI.
August 27410 – The sacking of Rome by the Visigoths ends after three days. 1172 – Henry the Young King and Margaret of France are crowned junior king and queen of England. 1232 – Shikken Hojo Yasutoki of the Kamakura shogunate promulgates the Goseibai Shikimoku, the first Japanese legal code governing the samurai class. 1557 – The Battle of St. Quentin results in Emmanuel Philibert becoming Duke of Savoy. 1593 – Pierre Barrière failed an attempt to assassinate Henry IV of France.
February 562 – Earthquake in Pompeii, Italy. 1576 – Henry of Navarre abjures Catholicism at Tours and rejoins the Protestant forces in the French Wars of Religion. 1597 – A group of early Japanese Christians are killed by the new government of Japan for being seen as a threat to Japanese society. 1783 – In Calabria, a sequence of strong earthquakes begins. 1810 – Peninsular War: Siege of Cádiz begins. 1818 – Jean-Baptiste Bernadotte ascends to the thrones of Sweden and Norway.
March 30598 – Balkan Campaign: The Avars lift the siege at the Byzantine stronghold of Tomis. Their leader Bayan I retreats north of the Danube River after the Avaro-Slavic hordes are decimated by the plague. 1282 – The people of Sicily rebel against the Angevin king Charles I, in what becomes known as the Sicilian Vespers. 1296 – Edward I sacks Berwick-upon-Tweed, during armed conflict between Scotland and England. 1699 – Guru Gobind Singh establishes the Khalsa in Anandpur Sahib, Punjab.
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.
October 9768 – Carloman I and Charlemagne are crowned kings of the Franks. 1238 – James I of Aragon founds the Kingdom of Valencia. 1410 – The first known mention of the Prague astronomical clock. 1446 – The Hangul alphabet is published in Korea. 1594 – Troops of the Portuguese Empire are defeated on Sri Lanka, bringing an end to the Campaign of Danture. 1604 – Kepler's Supernova is the most recent supernova to be observed within the Milky Way. 1635 – Roger Williams is banished from the Massachusetts Bay Colony after religious and policy disagreements.
December 22AD 69 – Vespasian is proclaimed Emperor of Rome; his predecessor, Vitellius, attempts to abdicate but is captured and killed at the Gemonian stairs. 401 – Pope Innocent I is elected, the only pope to succeed his father in the office. 856 – Damghan earthquake: An earthquake near the Persian city of Damghan kills an estimated 200,000 people, the sixth deadliest earthquake in recorded history. 880 – Luoyang, eastern capital of the Tang dynasty, is captured by rebel leader Huang Chao during the reign of Emperor Xizong.
October 27312 – Constantine is said to have received his famous Vision of the Cross. 1275 – Traditional founding of the city of Amsterdam. 1524 – French troops lay siege to Pavia. 1553 – Condemned as a heretic, Michael Servetus is burned at the stake just outside Geneva. 1644 – Second Battle of Newbury in the English Civil War. 1682 – Philadelphia is founded in the Commonwealth of Pennsylvania. 1775 – King George III expands on his Proclamation of Rebellion in the Thirteen Colonies in his speech from the throne at the opening of Parliament.
February 26747 BC – According to Ptolemy, the epoch (origin) of the Nabonassar Era began at noon on this date. Historians use this to establish the modern BC chronology for dating historic events. 364 – Valentinian I is proclaimed Roman emperor. 1266 – Battle of Benevento: An army led by Charles, Count of Anjou, defeats a combined German and Sicilian force led by Manfred, King of Sicily. Manfred is killed in the battle and Pope Clement IV invests Charles as king of Sicily and Naples.