March 7 in History 161 – Marcus Aurelius and L. Commodus (who changes his name to Lucius Verus) become joint emperors of Rome on the death of Antoninus Pius. 1277 – The University of Paris issues the last in a series of condemnations of various philosophical and theological…
February 29, also known as leap day or leap year day, is a date added to most years that are divisible by 4, such as 2016, 2020, and 2024. A leap day is added in various solar calendars (calendars based on the Earth’s revolution around the Sun), including the Gregorian calendar standard in…
February 27 in History 380 – 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, a Khitan chieftain, is enthroned…
February 26 in History 747 BC – Epoch (origin) of Ptolemy’s Nabonassar Era. 364 – Valentinian I is proclaimed Roman emperor 1233 – Mongol–Jin War: The Mongols capture Kaifeng, the capital of the Jin dynasty, after besieging it for months. 1266 – Battle of Benevento: An army led by Charles, Count of Anjou, defeats a combined German and Sicilian force…
February 25 in History 138 – Roman emperor Hadrian adopts Antoninus Pius as his son, effectively making him his successor 628 – Khosrow II, the last great Shah of the Sasanian Empire (iran), is overthrown by his son Kavadh II 1336 – Four thousand defenders of Pilenai commit mass suicide rather than be taken…
February 8 in History 421 – 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…
January 31 in History 314 – Pope Sylvester I is consecrated, as a successor to the late Pope Miltiades. 1208 – The Battle of Lena takes place between King Sverker II of Sweden and his rival, Prince Eric, whose victory puts him on the throne…
January 30 in History 1018 – Poland and the Holy Roman Empire conclude the Peace of Bautzen. 1287 – King Wareru founds the Hanthawaddy Kingdom, and proclaims independence from the Pagan Kingdom. 1607 – An estimated 200 square miles (51,800 ha) along the coasts of the Bristol Channel and Severn Estuary in England are destroyed by massive…
January 27 in History AD 98 – Trajan succeeds his adoptive father Nerva as Roman emperor; under his rule, the Roman Empire will reach its maximum extent. 1186 – Henry VI, the son and heir of the Holy Roman Emperor Frederick I, marries Constance of…
January 21 in History 763 – Following the Battle of Bakhamra between Alids and Abbasids near Kufa, the Alid rebellion ends with the death of Ibrahim, brother of Isa ibn Musa. 1525 – The Swiss Anabaptist Movement is founded when Conrad Grebel, Felix Manz, George Blaurock, and about a dozen others…