In 1219 AD, Genghis Khan and his Mongol army overran the region. His troops are said to have annihilated the Khorasanian cities of Herat and Balkh as well as Bamyan. The destruction caused by the Mongols forced many locals to return to an agrarian rural society. Mongol rule continued with the Ilkhanate in the northwest while the Khalji dynasty administered the Afghan tribal areas south of the Hindu Kush until the invasion of Timur (aka Tamerlane), who established the Timurid Empire in 1370. Under the rule of Shah Rukh the city served as the focal point of the Timurid Renaissance, whose glory matched Florence of the Italian Renaissance as the center of a cultural rebirth.