Tuhia he tohutoro mō tēnei wāhanga - Ka tīmata te pakanga i te tau 1237. Ko Ögedei Khan te 2nd Khagan-Emperor o te Emepaea o Mongol, hei waahanga o tana mahere ki te wikitoria i a Europi, kua whakahaua e Ögedei a Batu Khan, te kaiwhakaara o te Golden Horde, ki te whakaeke i a Russia
He aha? I te tīmatanga o te kēmu, kua arahina e Batu te Horde ki te pito tonga o Ryazan.