where is the first area located in present day terms?
Turkey
Anatolia
 It makes up the majority of modern-day Turkey
when was the byzantine empire born what was it originally called 5th century AD and was called Eastern Roman Empire, or Byzantium and when did it fall? 1453 which battle or event marked the fall of this empire? A six-year-long civil war followed by attack from Sultan Mehmed's army did he conquer other territories as well? Yes. Anatolia and in Southeast Europe as far west as Bosnia
wiki:1578263
Anatolia [SEP] Introduction
Anatolia, is a large peninsula in Western Asia and the westernmost protrusion of the Asian continent. It makes up the majority of modern-day Turkey. The region is bounded by the Turkish Straits to the northwest, the Black Sea to the north, the Armenian Highlands (part of the Eastern Anatolia Region) to the east, the Southeastern Anatolia Region (which borders Iraq and Syria) to the southeast, the Mediterranean Sea to the south, and the Aegean Sea to the west. The Sea of Marmara forms a connection between the Black and Aegean seas through the Bosporus and Dardanelles straits and separates Anatolia from Thrace on the Balkan peninsula of Southeast Europe.