The first Iranian tribes who lived on the shores of the Sea of Azov were Scythians, who arrived there c. 7th century BCE. Around the 6th century BCE the Sarmatians began their migration westwards, gradually subordinating the Scythians by the 2nd-century BCE. During this period there was substantial cultural and linguistic contact between the Early Slavs and Iranians, and in this environment were formed the Antes. Antes were Slavic people who lived in that area and to the West between Dniester and Dnieper from the 4th until the 7th century. It is thought that the Croats were part of the Antes tribal polity who migrated to Galicia in the 3rd-4th century, under pressure by invading Huns and Goths.