Ka kammala wannan magana: A ƙarni na farko bayan mutuwar Osman I a shekara ta 1326, mulkin Ottoman ya soma faɗaɗa gabashin Bahar Rum da kuma Balkans, a hankali da farko kuma daga baya da gaske.
An kama Gallipoli a cikin 1354, yana yanke Daular Byzantine daga yankunanta na nahiyar; an kama babban birni na Thessaloniki (tare da yawan jama'a fiye da London a lokacin) daga Venetians a 1387, kuma nasarar Turkiyya a yakin Kosovo a 1389 ya nuna ƙarshen ikon Serbia a yankin, yana share fagen fadada Ottoman zuwa sauran Turai.