4. The Defeat That Spelled the Beginning of the End of the Byzantine Empire

With the bow and arrow as their symbol of authority, the Seljuk Turks extended their rule over Persia, Mesopotamia, and Syria. Then in 1071, they crushed the Byzantine army at the Battle of Manzikert. Over the long term, that proved to be one of the most catastrophic defeats in the history of the Byzantine Empire.
In the seventh century, the Byzantines had been faced with extinction after the Arabs overran roughly two thirds of their empire, and seized the Levant, Egypt, and North Africa. The Byzantines survived, with Anatolia forming their new heartland and source of their manpower. After their victory at Manzikert, the Seljuk Turks overran much of that Byzantine heartland, fatally weakening the Empire and setting it on a path of inevitable decline and extinction.



