Herodotus names several tribes which inhabited the area in the 5th century BC: Sighnis, Graukens and Sinds, which, after the linguistic changes in the later Celtic and Roman periods, ultimately gave the name to the settlement. The Sinds were a Scythian tribe of Maeotian ethnicity. Originally inhabiting the area around the Kuban river and the Azov Sea, a branch of the tribe split in the 6th century BC and migrated to the southern parts of the Pannonian Basin, with one group remaining in Transylvania, while the other moved to the modern Belgrade area. The latest archaeological and linguistic researches showed that the Sinds inhabited the region in the 5th and 4th century BC.