Please see this recent (and comprehensive!) answer by u/itsallfolklore https://www.reddit.com/r/AskHistorians/comments/k9qyai/i_heard_the_claim_that_since_homo_sapiens_first/?utm_source=share&utm_medium=ios_app&utm_name=iossmf
Please do not take the advice of u/Eugene261 and muck around with Atlantis youtubes or Graham Hancock