Here is a good conference session delivered by Michael Cremo (on Ancient Secret Discoveries Youtube Channel). He discusses his own research and experience with scientists and anthropologists, with stories of what it took to get through the system and look into the archives of Museums, who do not display to the public some interesting finds that kick the Theory of Evolution into smithereens. And the conclusion is quite mind-blowing: evidence of a created artefact (that appears to have been made by someone with human-like intelligence) 2 billion years old. If you don't have time to view the whole video, that evidence from South Africa is presented at 47.38 of some hematite (type of iron ore) spheres with perfect parallel grooves running around their circumference.
(51.35 mins)
(51.35 mins)