Events relating to the byzantine empire

The new Mameluke dynasty in Egypt begins a systematic campaign to drive the Crusaders out of the Middle East

Osman inherits the leadership of the tribal group later known by a version of his name, as the Ottoman Turks

In the space of a few months the Muslims take the last four crusader castles, Tyre, Sidon, Acre and finally Beirut

The Knights Templars withdraw from the island of Arwad, the last foothold of the crusaders in the Middle East

Victory at Kosovo gives the Ottoman Turks control over Serbia, which becomes a vassal state

Constantinople falls to a 21-year-old Muslim conqueror, Mehmed II, bringing the Ottoman Turks their capital city

The Christian emperor Constantine XI dies in the fighting in Constantinople, as the Greek Byzantine empire yields to that of the Ottoman Turks

The Turks complete the occupation of Greece, which remains within the Ottoman empire until the nineteenth century

The name of Constantinople changes to Istanbul, a word based on the everyday Greek name for the city

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