left tributary of the Volga and the largest one in discharge) - Oka   -   1,500 km (930 mi) (the longest right tributary of Volga) - Belaya - 1,430 km...

capital of the Latin Empire. Siege of Bilär (1236) – Mongol invasion of Volga Bulgaria Siege of Córdoba (1236) – Reconquista Siege of Ryazan (1237) –...