 Nyorai kupfuurira kweiyi ndima - Rufu Rutsvuku rwakasvika muguta muna September 1347, zvichida kuburikidza naKaffa. Panguva iyoyo vakuru vakuru vomunzvimbomo vakanga vari muhondo yevagari vomunzvimbomo yeTrapezuntine. Constantinople yakaramba iri guta guru reByzantium kusvikira yarohwanaOttoman Sultan Mehmed II muna 1453, uyo akakundawo Trebizond makore masere gare gare, muna 1461. 