Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: An fara kewaye da Ottoman na farko na Constantinople a cikin 1422 sakamakon yunƙurin da Sarkin Byzantine Manuel II ya yi na tsoma baki a cikin maye gurbin Sultans na Ottoman, bayan mutuwar Mehmed I a 1421. Wannan manufar Byzantines sau da yawa ana amfani da shi cikin nasara wajen raunana maƙwabtansu.  Tambaya: A wace shekara ne Ottoman Siege ya faru?
1422 da kuma