Yeah, because I'm google...
Answer: For context, a relief sculpture is done on a flat surface. It looks more like a carving. A relief might be easier to create is it can be mounted, shaped like a drawing, and perhaps less heavy. A drawback might be that it’s less three dimensional, or that it might be harder to make it more realistic.
False. A theory is not a fact
<span>The best were found in ancient Egypt
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If we are talking early early then it was because art wasn't a form of "art" it was a form of communication.
But a little later down the road, people did not understand the human body and could not paint one perfectly, and also painters loved to show perfection, as in, gold everywhere, or a kind a top a thousand bodies. Something like that. So yeah...