Commerce is not the same thing as capitalism, those words are not synonyms. Take a step back and open a dictionary. Pedantic definitions aside. The idea that capitalism is human nature and that human society and more broadly humans as a species are inherently capitalist is completely made up and ancient couns existing doesnt prove it. Id recommend looking up articles regarding "gift culture'" and "barter culture"

As for opening a history book: i did my undergrad in European history, and have a masters in Archeology. So while im not the definitive expert on the history of commerce and capitalism by any means, I have definitely opened up a couple history books.