Mezue nkebi ahịrịokwu a: Na narị afọ nke 14, Alaeze Ukwu Ottoman na-etolite etolite ghọrọ ike na-arị elu n'Ebe Ọwụwa Anyanwụ Ụwa. Mgbe ha merisịrị ọtụtụ akụkụ nke Anatolia,
N'ịbụ ndị weghaara Gallipoli na 1354, ndị Ottoman ndị Turkey nwetakwara ụkwụ na Balkans. Ike Ndị Kraịst nke mpaghara ahụ, ọkachasị alaeze Byzantium na-ada ada, adịghị ike ma kewaa, na-enye ohere mgbasawanye Turkey ngwa ngwa gafee mpaghara ahụ, nke ndị Ottoman n'onwe ha na ndị agha agha "ghazi" ndị Turkic na-enweghị onwe ha. Na 1369, ndị Ottoman nwere ike ijide Adrianople, obodo nke atọ kachasị mkpa nke Alaeze Ukwu Byzantine mgbe isi obodo ya bụ Constantinople na Thessalonica. Thessalonica, nke onye isi Byzantine na onye eze ukwu n'ọdịnihu Manuel II Palaiologos (), chịkwara, nyefere onwe ya na 1387 mgbe nnọchibido dị ogologo (1383<unk>1387), ya na obodo Christopolis na Chrysopolis.