May 20 in History 325 – The First Council of Nicaea is formally opened, starting the first ecumenical council of the Christian Church. 491 – Empress Ariadne marries Anastasius I. The widowed Augusta is able to choose her successor for the Byzantine throne, after Zeno (late emperor) dies of dysentery. 685 – The Battle of Dun Nechtain is…
This day marks the approximate midpoint of spring in the Northern Hemisphere and of autumn in the Southern Hemisphere (starting the season at the March equinox). May 5 in History 553 – The Second Council of Constantinople begins 1215 – Rebel barons renounce…
May 2 in History 1194 – King Richard I of England gives Portsmouth its first Royal Charter 1230 – William de Braose is hanged by Prince Llywelyn the Great. 1335 – Otto the Merry, Duke of Austria, becomes Duke of Carinthia. 1536 – Anne Boleyn, Queen of England, is arrested and imprisoned on charges of adultery, incest, treason and witchcraft. 1559 – John…
May 1 in History 475 BC – Roman consul Publius Valerius Poplicola celebrates a Roman triumph for his victory over Veii and the Sabines. 305 – Diocletian and Maximian retire from the office of Roman emperor. 524 – King Sigismund of Burgundy is executed at Orléans after an eight-year reign and is succeeded by his brother Godomar. 880 – The Nea Ekklesia is inaugurated in Constantinople, setting…
April 16 in History AD 73 – Masada, a Jewish fortress, falls to the Romans after several months of siege, ending the First Jewish–Roman War. 1346 – Stefan Dušan, “the Mighty”, is crowned Emperor of the Serbs at Skopje, his empire occupying much of the Balkans. 1520 – The Revolt of the Comuneros begins in Spain…
April 13 in History 1111 – Henry V is crowned Holy Roman Emperor. 1204 – Constantinople falls to the Crusaders of the Fourth Crusade, temporarily ending the Byzantine Empire. 1612 – Miyamoto Musashi defeats Sasaki Kojirō at Funajima island. 1613 – Samuel Argall, having captured Native…
April 10 in History 428 – Nestorius becomes the Patriarch of Constantinople. 837 – Halley’s Comet makes its closest approach to Earth at a distance equal to 0.0342 AU (5.1 million kilometres/3.2 million miles). 1407 – Deshin Shekpa, 5th Karmapa Lama visits the Ming dynasty capital at Nanjing. He is awarded the title “Great Treasure Prince of…
March 28 in History AD 37 – Roman emperor Caligula accepts the titles of the Principate, bestowed on him by the Senate. 193 – After assassinating the Roman Emperor Pertinax, his Praetorian Guards auction off the throne to Didius Julianus. 364 – Roman Emperor Valentinian I appoints his brother Flavius Valens co-emperor. 1566 – The foundation stone of Valletta, Malta’s capital…
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 20 in History 1339 – The Milanese army and the St. George’s (San Giorgio) Mercenaries of Lodrisio Visconti clash in the Battle of Parabiago; Visconti is defeated. 1472 – Orkney and Shetland are pawned by Norway to Scotland in lieu of a dowry for Margaret of Denmark. 1547 – Edward VI of England is crowned King of England at Westminster Abbey.…