Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Constantinople ya kasance babban birni na daular tun lokacin da aka keɓe shi a matsayin babban birnin Kirista na farko a cikin 330 a ƙarƙashin sarki na farko na Kirista na Roman, Constantine Mai Girma. A cikin ƙarni goma sha ɗaya masu zuwa, an kewaye birnin sau da yawa amma an kama shi sau ɗaya kawai: a lokacin Crusade na huɗu a cikin 1204. 'Yan Salibiyan sun kafa jihar Latin mara daidaituwa a ciki da kewayen Constantinople yayin da sauran daular ta rabu zuwa jihohin da suka gaji Byzantine, musamman Nicaea, Epirus da Trebizond. Sun yi gwagwarmaya a matsayin abokan adawa da cibiyoyin Latin, amma kuma sun yi gwagwarmaya da juna don kursiyin Byzantine.  Tambaya: Yaushe ne kawai aka kama Constantinople?
1204 da kuma