Ramba uchiverenga ndima iyi - Umambo hweJin hwakawa gore rakatevera racho, huchipedzisa kukunda kwevaMongol kuchamhembe kweChina. Umambo ipapo, muna 1235, hwakatanga kupinda muKorea
uye umambo hwaSong. Kukundwa kweChina yose kwakanga kusati kwapera kutozosvikira muna 1279 neHondo yeYamen.