On September 20, history records 45 notable events, 212 famous births and 92 deaths, spanning the years 622 to 1697.
Events on this day include: Muhammad and Abu Bakr arrived in Medina (622); Agnes of Poitou and Andrew I of Hungary meet to negotiate about the border-zone in present-day Burgenland. (1058).
Notable people born on September 20 include Kan Bahlam I (524), Kyunyeo (917), Philipp I, Count of Hanau-Münzenberg (1449).
Notable figures who died on this day include Gozbald (855), Hermann II, Count Palatine of Lotharingia (1085), Adelog of Hildesheim (1190).
Events on 20 September 45
See all →Agnes of Poitou and Andrew I of Hungary meet to negotiate about the border-zone in present-day Burgenland.
The Great Prussian Uprising among the old Prussians begins against the Teutonic Knights.
Cardinal Robert of Geneva, called by some the "Butcher of Cesena", is elected as Avignon Pope Clement VII, beginning the Papal schism.
The 1498 Nankai earthquake generates a tsunami that washes away the building housing the statue of the Great Buddha at Kōtoku-in in Kamakura, Kanagawa, Japan; since then the Buddha has sat in the open air.
Ferdinand Magellan sets sail from Sanlúcar de Barrameda with about 270 men on his expedition to circumnavigate the globe.
The Treaty of Ryswick is signed by France, England, Spain, the Holy Roman Empire and the Dutch Republic ending the Nine Years' War (1688-97).