Ramba uchinyora ndima iyi - Hazvina kujeka kana nzira dzokuparadzana nehama dzakakonzerwa nemakakatanwa emukati kana kuti kumanikidzwa kwakasimba kweKhazar. Yokupedzisira inorangarirwa kuva ingangodaro zvikuru. VaBulgaria vaitungamirirwa nehama mbiri dzekutanga Batbayan naKotrag vakaramba vari munzvimbo yePontic steppe, kwavaizivikanwa se "Black Bulgars" neByzantine neRus zvinyorwa, uye vakava vashandi veKhazar. VaBulgaria vaitungamirirwa naKotrag vakatamira kunharaunda yepakati yeVolga mukati memazana emakore e7 ne9, kwavakavaka Volga Bulgaria, neBolghar sedhorobha rayo. Maererano naAhmad ibn Rustah (zana remakore rechi10), vaBulgaria vokuVolga vakanga vakakamurwa kuva mapoka matatu: "boka rokutanga rainzi Bersula (Barsils), rechipiri Esegel, uye rechitatu rainzi Bulgar". Muna 922 vakagamuchira chiIslam sorudzidziso rwepamutemo. Vakaramba vari rudzi rwavo kusvikira muzana remakore rechi13 nokudzivisa kurwisa kwokutanga kwevaMongol
muna 1223. Pakupedzisira vakakundwa nevaMongol muna 1237. Zvishoma nezvishoma vakarasikirwa nokuzivikanwa kwavo pashure pa1431 apo maguta avo nenharaunda zvakatorwa navaRussia.