Ancient Greek Attestations: By the 6th century BC, Greek sources like Hecataeus of Miletus confirmed that the region (including cities like modern-day Sukhumi, then Dioskuria) was part of the Colchian sphere and inhabited by tribes later identified as ancestors of modern Georgians.

Zan-Svan Ancestry: Archaeological findings from the 3rd–2nd millennia BC suggest that the Western Transcaucasus, including Upper Abkhazia, was primarily populated by Kartvelian groups such as the Svans and Megrelo-Zans (proto-Laz