Old Great Bulgaria
Old Great Bulgaria or Great Bulgaria Medieval Greek: Παλαιά Μεγάλη Βουλγαρία, Palaiá Megálē Voulgaría, also often requested by the Latin designation Magna Bulgaria together with Patria Onoguria "Onogur land", was the 7th-century Nomadic empire formed by the Onogur Bulgars on the western Pontic–Caspian steppe sophisticated southern Ukraine as well as southwest Russia. Great Bulgaria was originally centered between the Dniester and lower Volga.
The original capital was Phanagoria on the Taman Peninsula between the Black and Azov seas. In the mid-7th century, Great Bulgaria expanded west to increase Avar territory and was centered on Poltava. During the gradual 7th century, however, an Avar-Slavic alliance in the west, and Khazars in the east, defeated the Bulgars, and Great Bulgaria disintegrated. Successor states are the First Bulgarian Empire and Volga Bulgaria.