Don't have Telegram yet? Try it now!
http://archaeologyinbulgaria.com/2018/06/28/archaeologist-ventsislav-gergov-chalcolithic-civilization-7000-years-ago-was-height-of-southeast-europe-bulgaria-interview/
Archaeologist Ventsislav Gergov: Chalcolithic Civilization from 7,000 Years Ago Was the Height of Southeast Europe, Bulgaria (Interview, Part 1)