Black Sea–Caspian Steppe language and the Northeast Caucasian languages are related to Hurrian and Urartian. This implies that the mountaineers of the Caucasus have been in their present location for a very long time. According to the most common theory the Indo-European languages originated on the steppes north of the Caucasus and Black Sea. Some time before 3000 BC the Maikop culture appeared in Circassia and Kabardia. It is noted for its excellent gold and silver work. North on the steppe was the Yamnaya culture which was probably Indo-European. Around 1000 BC there was a bronze-age Koban culture in the Kabardian area which
Black Sea Lowland Plateau, Podillia Upland, Dnieper Upland, Zaporizhian Ridge, Azov Upland. Azov, Crimean, and Bugeac lowlands consider to be extension of the Black Sea Lowland and its regional extremities. Black Sea Lowland is an accumulative, weakly divided plain which being part of the greater Eastern European Plain gradually slopes towards the Black Sea and the Sea of Azov. Black Sea Lowland Black Sea Lowland is a major geographic feature of the Northern Pontic region and the East European Plain. It almost completely within the Southern Ukraine covering half of its territory. The lowland is located along the northern shores of Black Sea.