477 BC – Battle of the Cremera as part of the Roman–Etruscan Wars. Veii ambushes and defeats the Roman army.
387 BC – Roman-Gaulish Wars: Battle of the Allia: A Roman army is defeated by raiding Gauls, leading to the subsequent sacking of Rome.
362 – Roman–Persian Wars: Emperor Julian arrives at Antioch with a Roman expeditionary force (60,000 men) and stays there for nine months to launch a campaign against the Persian Empire.
452 – Sack of Aquileia: After an earlier defeat on the Catalaunian Plains, Attila lays siege to the metropolis of Aquileia and eventually destroys it.
645 – Chinese forces under general Li Shiji besiege the strategic fortress city of Anshi (Liaoning) during the Goguryeo–Tang War.
1195 – Battle of Alarcos: Almohad forces defeat the Castilian army of Alfonso VIII and force its retreat to Toledo.
1290 – King Edward I of England issues the Edict of Expulsion, banishing all Jews (numbering about 16,000) from England.
1334 – The bishop of Florence blesses the first foundation stone for the new campanile (bell tower) of the Florence Cathedral, designed by the artist Giotto di Bondone.
1389 – France and England agree to the Truce of Leulinghem, inaugurating a 13-year peace, the longest period of sustained peace during the Hundred Years' War.
1507 – In Brussels, Prince Charles I is crowned Duke of Burgundy and Count of Flanders, a year after inheriting the title.
1555 – The College of Arms is reincorporated by Royal charter signed by Queen Mary I of England and King Philip II of Spain.
1723 – Johann Sebastian Bach leads the first performance of his cantata Erforsche mich, Gott, und erfahre mein Herz, BWV 136, in Leipzig on the eighth Sunday after Trinity.
1806 – A gunpowder magazine explosion in Birgu, Malta, kills around 200 people.
1812 – The Treaties of Orebro end both the Anglo-Russian and Anglo-Swedish Wars.
1841 – Coronation of Emperor Pedro II of Brazil.
1857 – Louis Faidherbe, French governor of Senegal, arrives to relieve French forces at Kayes, effectively ending El Hajj Umar Tall's war against the French.