Whakaotihia te rerenga e whai ake nei: Ka tīmata te pakanga i te tau 1237. Ko Ögedei Khan te 2nd Khagan-Emperor o te Emepaea o Mongol, a hei waahanga o tana mahere ki te wikitoria i a Europi, kua whakahaua e Ögedei a Batu Khan, te kaiwhakaara o te Golden Horde,
whakaekea a Rūhia. I te tīmatanga o te kēmu, kua arahina e Batu te Horde ki te pito tonga o Ryazan.