📅 Today in HistoryJune 11

Marcomannic Wars: The Roman army in Moravia is encircled by the Quadi, who have broken the peace treaty (171). In a violent thunderstorm emperor Marcus Aurelius defeats and subdues them in the so-called "miracle of the rain".

Emperor Taizong of Tang sends envoys to the Xueyantuo bearing gold and silk in order to seek the release of Chinese prisoners captured during the transition from Sui to Tang.

A Hasanid Alid uprising in Mecca is crushed by the Abbasids at the Battle of Fakhkh.

Vladimir the Great consolidates the Kievan realm from Ukraine to the Baltic Sea. He is proclaimed ruler (knyaz) of all Kievan Rus'.

Lombard Revolt: Greek citizens of Bari rise up against the Lombard rebels led by Melus and deliver the city to Basil Mesardonites, Byzantine governor (catepan) of the Catepanate of Italy.

Empress Zoe Porphyrogenita marries Constantine Monomachos, who is crowned the following day as Byzantine Emperor.

Roger of Salerno, Prince of Antioch, captures Azaz from the Seljuk Turks.

Albert I of Brandenburg, also called The Bear (Ger: Albrecht der Bär), becomes the founder of the Margraviate of Brandenburg, Germany and the first margrave.

The megas doux Alexios Apokaukos, chief minister of the Byzantine Empire, is lynched by political prisoners.

Hundred Years' War: Start of the Battle of Jargeau.