Caspian Sea and a Pleistocene stage, that includes glaciation cycles and the creation of the present Volga River. During the first stage, the Tethys Sea had evolved into the Sarmatian Lake, that was created from the modern Black Sea and south Caspian, when the collision of the Arabian peninsula with Western Asia pushed up the Kopet Dag and Caucasus Mountains, setting definitive south and west boundaries to the Caspian basin. This orogeneic movement was continuous throughout the years, while Caspian was regularly disconnecting from the Black Sea. In the late Pontian, a mountain arch rose across the south basin and divided it
Black Sea–Caspian Steppe may have been proto-Chechen. Iron appeared in the eighth century BC. The small western area around the Taman peninsula had a distinct history since it was in contact with the literate civilizations of the Mediterranean basin. From the eighth century Greeks founded colonies around the Black Sea and we begin to have written reports. Maeotians was the Greek name for the peoples around the Sea of Azov. The Hellenized Sindi people appeared with a possible capital or seaport at Anapa. Both were perhaps ancestors of the Circassians. The Greek colonies exported grain and slaves to Byzantium and beyond – a