Year 1057 (MLVII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.
Events
By place
Africa
The Banu Hilal take Kairouan. The Zirid dynasty has to move to Mahdiya.
Asia
King Anawrahta of Burma takes over Thanton in northern Thailand, strengthening Theravada Buddhism in the country.
Europe
King Macbeth of Scotland is killed in battle against Malcolm III of Scotland. He is replaced as King of Scotland by his stepson Lulach. William the Conqueror defeats a Franco-Angevin army at the mouth of the Dives River, Normandy in the Battle of Varaville. Ferdinand I of Castile takes Lamego and Viseu from Christian lords allied to the Muslim taifas.
By topic
Religion
August 2 – Pope Stephen IX (sometimes referred to as Stephen X) replaces Pope Victor II as the 154th pope.
Births
Hugh I, Duke of Burgundy (d. 1093)
Deaths
Jōchō, Japanese sculptor
March 1 – Ermesinde of Carcassonne, countess and regent of Barcelona (b. 972) July 28 – Pope Victor II August 15 – King Macbeth of Scotland Late August – Edward the Exile, son of Edmund II of England August 31 – Leofric, Earl of Mercia