Where do cavemen fit into Biblical history?
Based on their evolutionary beliefs, atheists believe most cavemen were primitive brutes on the way to becoming fully human.
From the viewpoint of biblical history, after the confusion of languages at the tower of Babel as people spread out they would have lived in a variety of homes made of mud, stone, wood, tents, or in caves.
The Bible describes a number of 'cavemen'. In Genesis, we find that Lot was once a 'caveman' (after he fled Sodom). When David ran from King Saul, he lived in a cave. And Job mentions people who lived in caves also. Thus, you would expect evidence all over the world that skilful, talented and fully human people have lived in caves at various times.