1491 is a great book about the history of the Americas before Columbus.
Graeber also explores the question what defines a society, and how at certain points some groups of people identified their culture through "schismogenesis" more so in oppositional context to against other group(s)
It's a massive book, but really refreshing and full of delightful little anecdotes and footnotes all through out.
https://en.wikipedia.org/wiki/%C3%81lvar_N%C3%BA%C3%B1ez_Cab...
I found a book on his trip in a "little library," and was surprised they never mentioned this guy once in history class, at least enough for me to remember. Fascinating, sometimes funny story as well.