Dozens Killed in Chinese Knife Attack

Siege of Jerusalem: Titus, son of emperor Vespasian, storms the Fortress of Antonia north of the Temple Mount. The Roman army is drawn into street fights with the Zealots.

Kardam of Bulgaria defeats Byzantine Emperor Constantine VI at the Battle of Marcellae.

Rollo lays siege to Chartres.

Richard I of England officially invested as Duke of Normandy.

Treaty of San Germano is signed at San Germano between Holy Roman Emperor Frederick II and Pope Gregory IX. A Dominican named Guala is responsible for the negotiations.

The Battle of Kellistown was fought on this day between the forces of the English led by Roger Mortimer, 4th Earl of March against the O'Byrnes and O'Tooles under the command of Art Óg mac Murchadha Caomhánach, the most powerful Chieftain in Leinster.