Là m?t v??ng qu?c ??c l?p trong nhi?u th? k?, Bulgaria ?ã là m?t c??ng qu?c l?n trong th?i gian dài th?i Trung c?.Numerous consecutive waves of Slavic migration through the entire 6th and the early 7th generations resulted in a spectacular alter from the demographics on the area and its Virtually complete Slavicisation.The Serbian and Greek for