957

By place

Europe

• September 6 - Liudolf, the eldest son of King Otto I, dies of a violent fever near Pombia. The German armies return home, leaving Berengar of Ivrea in control of Italy. Liudolf is succeeded by his 3-year-old son Otto, who will be adopted and raised by his grandfather Otto, as the later duke of Swabia and Bavaria.
• Wilfred II, count of Besalú of the House of Barcelona, is killed by rebellious vassals. He is succeeded by his brother Sunifred II.

England

• Mercia and Northumbria rebel against King Eadwig and switch their allegiance to his brother Edgar. The English nobles agree to divide the kingdom along the Thames River, with Eadwig keeping Wessex and Kent in the south and Edgar ruling in the north. Edgar's advisers recall Dunstan from Flanders.

Japan

• The Tenryaku era under the reign of Emperor Murakami ends. The Tentoku era begins.

Caspian Sea

• 957 Caspian Sea earthquake. It took place in the Caspian Sea and its vicinity. The earthquake is mentioned by several Arab and Syriac chronicle writers, who claimed that it mainly affected the region of Persian Iraq. The initial shocks lasted 40 days, but ceased for a while. The main earthquake then occurred, damaging the cities of Ray, Talikan, and Hulwan. A reported number of 150 villages were supposedly destroyed by the earthquake.

By topic

Religion

• Olga of Kiev, ruler and regent of Kievan Rus', converts to the Eastern Orthodox Church, from paganism.
• In China the Longquan Monastery is founded during the Liao Dynasty.