Mezue ahịrịokwu na-esonụ: N'agbanyeghi ihe ịga nke ọma ndị a, ndị Ottomans nwere nnukwu nsogbu mgbe ha nọ na
Ankara na 1402 Timur Onye Ukwu nke Alaeze Ukwu Timurid meriri ma jide Ottoman Sultan Bayezid Thunderbolt (aha ya maka ọsọ nke mmeri ya megide ndị iro ya bụ Ndị Kraịst, ọkachasị na Nicopolis). Mgbe afọ iri nke ọgụ na mgba, Mehmed I meriri ma weghachite Alaeze Ukwu Ottoman na Eze Ukwu Byzantine nabatara ya ma kweta ịkwụ ụtụ.