Krum was the Khan of Bulgaria after the year of 796 A.D. and before 803 A.D. and until his death in 814 A.D. #onthisday 13th April. Krum was able to double the size of Bulgarian territory and spread the Empire from Danube to Dnieper and from Odrin to Tatra Mountains.

Around the time of 805 A.D. he defeated the Avar Khaganate and continued to destroy the remainder of the Avars, restoring the power of Bulgar in Ongal. He was able to engage in political and territorial expansion of  the empire.