January 20250 – Pope Fabian is martyred during the Decian persecution. 649 – King Chindasuinth, at the urging of bishop Braulio of Zaragoza, crowns his son Recceswinth as co-ruler of the Visigothic Kingdom. 1156 – Finnish peasant Lalli kills English clergyman Henry, the Bishop of Turku, on the ice of Lake Köyliö. 1265 – The first English parliament to include not only Lords but also representatives of the major towns holds its first meeting in the Palace of Westminster, now commonly known as the "Houses of Parliament".
August 24367 – Gratian, son of Roman Emperor Valentinian I, is named co-Augustus at the age of eight by his father. 394 – The Graffito of Esmet-Akhom, the latest known inscription in Egyptian hieroglyphs, is written. 410 – The Visigoths under king Alaric I begin to pillage Rome. 1185 – Sack of Thessalonica by the Normans. 1200 – King John of England, signer of the first Magna Carta, marries Isabella of Angoulême in Angoulême Cathedral. 1215 – Pope Innocent III issues a bull declaring Magna Carta invalid.
May 1028 BC – A sunspot is observed by Han dynasty astronomers during the reign of Emperor Cheng of Han, one of the earliest dated sunspot observations in China. 1291 – Scottish nobles recognize the authority of Edward I of England pending the selection of a king. 1294 – Temür, Khagan of the Mongols, is enthroned as Emperor of the Yuan dynasty. 1497 – Amerigo Vespucci allegedly leaves Cádiz for his first voyage to the New World. 1503 – Christopher Columbus visits the Cayman Islands and names them Las Tortugas after the numerous turtles there.
July 3324 – Battle of Adrianople: Constantine I defeats Licinius, who flees to Byzantium. 987 – Hugh Capet is crowned King of France, the first of the Capetian dynasty that would rule France until the French Revolution in 1792. 1035 – William the Conqueror becomes the Duke of Normandy, reigning until 1087. 1608 – Québec City is founded by Samuel de Champlain. 1754 – French and Indian War: George Washington surrenders Fort Necessity to French forces. 1767 – Pitcairn Island is discovered by Midshipman Robert Pitcairn on an expeditionary voyage commanded by Philip Carteret.
January 1January 1 or 1 January is the first day of the year in the Gregorian Calendar. There are 364 days remaining until the end of the year (365 in leap years). This day is also known as New Year's Day since the day marks the beginning of the year. TOC 153 BC – For the first time, Roman consuls begin their year in office on January 1. 45 BC – The Julian calendar takes effect as the civil calendar of the Roman Empire, establishing January 1 as the new date of the new year. 42 BC – The Roman Senate posthumously deifies Julius Caesar.
October 211096 – A Seljuk Turkish army successfully fights off the People's Crusade. 1097 – First Crusade: Crusaders led by Godfrey of Bouillon, Bohemund of Taranto, and Raymond IV, Count of Toulouse, begin the Siege of Antioch. 1392 – Japanese Emperor Go-Kameyama abdicates in favor of rival claimant Go-Komatsu. 1512 – Martin Luther joins the theological faculty of the University of Wittenberg. 1520 – João Álvares Fagundes discovers the islands of Saint Pierre and Miquelon, bestowing them their original name of "Islands of the 11,000 Virgins".
November 18326 – The old St. Peter's Basilica is consecrated by Pope Sylvester I. 401 – The Visigoths, led by king Alaric I, cross the Alps and invade northern Italy. 1095 – The Council of Clermont begins: called by Pope Urban II, it led to the First Crusade to the Holy Land. 1105 – Maginulfo is elected Antipope Sylvester IV in opposition to Pope Paschal II. 1210 – Pope Innocent III excommunicates Holy Roman Emperor Otto IV for invading the Kingdom of Sicily after promising to recognize papal control over it.
November 8960 – Battle of Andrassos: Byzantines under Leo Phokas the Younger score a crushing victory over the Hamdanid Emir of Aleppo, Sayf al-Dawla. 1278 – Trần Thánh Tông, the second emperor of the Trần dynasty, decides to pass the throne to his crown prince Trần Khâm and take up the post of Retired Emperor. 1291 – The Republic of Venice enacts a law confining most of Venice's glassmaking industry to the "island of Murano". 1519 – Hernán Cortés enters Tenochtitlán and Aztec ruler Moctezuma welcomes him with a great celebration.
March 3473 – Gundobad (nephew of Ricimer) nominates Glycerius as emperor of the Western Roman Empire. 724 – Empress Genshō abdicates the throne in favor of her nephew Shōmu who becomes emperor of Japan. 1575 – Mughal Emperor Akbar defeats Sultan of Bengal Daud Khan Karrani's army at the Battle of Tukaroi. 1585 – The Olympic Theatre, designed by Andrea Palladio, is inaugurated in Vicenza. 1776 – American Revolutionary War: The first amphibious landing of the United States Marine Corps begins the Battle of Nassau.
September 11145 – The main altar of Lund Cathedral, at the time seat of the archiepiscopal see of all the Nordic countries, is consecrated. 1173 – The widow Stamira sacrifices herself in order to raise the siege of Ancona by the forces of Emperor Frederick Barbarossa. 1355 – King Tvrtko I of Bosnia writes In castro nostro Vizoka vocatum from the Old town of Visoki. 1449 – Tumu Crisis: The Mongols capture the Emperor of China. 1529 – The Spanish fort of Sancti Spiritu, the first one built in modern Argentina, is destroyed by indigenous people.