March 1837 – Roman Senate annuls Tiberius' will and proclaims Gaius Julius Caesar Augustus Germanicus (aka Caligula = Little Boots) emperor. 1068 – An earthquake in the Levant and the Arabian Peninsula leaves up to 20,000 dead. 1229 – Frederick II, Holy Roman Emperor, declares himself King of Jerusalem in the Sixth Crusade. 1241 – First Mongol invasion of Poland: Mongols overwhelm Polish armies in Kraków in the Battle of Chmielnik and plunder the city. 1314 – Jacques de Molay, the 23rd and final Grand Master of the Knights Templar, is burned at the stake.
December 12627 – Battle of Nineveh: A Byzantine army under Emperor Heraclius defeats Emperor Khosrau II's Persian forces, commanded by General Rhahzadh. 1388 – Maria of Enghien sells the lordship of Argos and Nauplia to the Republic of Venice. 1787 – Pennsylvania becomes the second state to ratify the US Constitution. 1862 – American Civil War: sinks on the Yazoo River. 1866 – Oaks explosion: The worst mining disaster in England kills 361 miners and rescuers. 1870 – Joseph H. Rainey of South Carolina becomes the second black U.
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.
March 612 BCE – The Roman emperor Augustus is named Pontifex Maximus, incorporating the position into that of the emperor. 632 – The Farewell Sermon (Khutbah, Khutbatul Wada') of the Islamic prophet Muhammad. 845 – The 42 Martyrs of Amorium are killed after refusing to convert to Islam. 961 – Byzantine conquest of Chandax by Nikephoros Phokas, end of the Emirate of Crete. 1204 – The Siege of Château Gaillard ends in a French victory over King John of England, who loses control of Normandy to King Philip II Augustus.
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 101317 – The "Nyköping Banquet": King Birger of Sweden treacherously seizes his two brothers Valdemar, Duke of Finland and Eric, Duke of Södermanland, who were subsequently starved to death in the dungeon of Nyköping Castle. 1508 – The League of Cambrai is formed by Pope Julius II, Louis XII of France, Maximilian I, Holy Roman Emperor and Ferdinand II of Aragon as an alliance against Venice. 1520 – Martin Luther burns his copy of the papal bull Exsurge Domine outside Wittenberg's Elster Gate.
February 8421 – Constantius III becomes co-Emperor of the Western Roman Empire. 1238 – The Mongols burn the Russian city of Vladimir. 1250 – Seventh Crusade: Crusaders engage Ayyubid forces in the Battle of Al Mansurah. 1347 – The Byzantine civil war of 1341–47 ends with a power-sharing agreement between John VI Kantakouzenos and John V Palaiologos. 1575 – Leiden University is founded, and given the motto Praesidium Libertatis. 1587 – Mary, Queen of Scots, is executed on suspicion of having been involved in the Babington Plot to murder her cousin, Queen Elizabeth I.
December 28418 – A papal election begins, resulting in the election of Pope Boniface I. 457 – Majorian is acclaimed as Western Roman emperor. 484 – Alaric II succeeds his father Euric and becomes king of the Visigoths. He establishes his capital at Aire-sur-l'Adour (Southern Gaul). 893 – An earthquake destroys the city of Dvin, Armenia. 1065 – Edward the Confessor's Romanesque monastic church at Westminster Abbey is consecrated. 1308 – The reign of Emperor Hanazono of Japan begins.
July 81099 – Some 15,000 starving Christian soldiers begin the siege of Jerusalem by marching in a religious procession around the city as its Muslim defenders watch. 1283 – Roger of Lauria, commanding the Aragonese fleet, defeats an Angevin fleet sent to put down a rebellion on Malta. 1497 – Vasco da Gama sets sail on the first direct European voyage to India. 1579 – Our Lady of Kazan, a holy icon of the Russian Orthodox Church, is discovered underground in the city of Kazan, Tatarstan.
September 30489 – The Ostrogoths under Theoderic the Great defeat the forces of Odoacer for the second time. 737 – The Turgesh drive back an Umayyad invasion of Khuttal, follow them south of the Oxus, and capture their baggage train. 1139 – A magnitude 7.7 earthquake strikes the Caucasus mountains in the Seljuk Empire, causing mass destruction and killing up to 300,000 people. 1399 – Henry IV is proclaimed king of England. 1520 – Suleiman the Magnificent is proclaimed sultan of the Ottoman Empire.