Danged if I know, Bob. I’ll read the book, if I can get through it before it’s due back at the library (or renew it, if I’m enjoying it), and I’ll probably learn something new.
Facts, of course, don’t do a whole lot for us without interpretation. I was just reading an article about Inca string-things. The article said they were used to keep accounts in a society without writing ... but then, said that’s one possibility that’s been proposed.
Reality can be so fluid. Have a drink!
I’m using the Inca string-thing as background for a story I’m writing. It starts out thirty thousand years ago.
I need to get it all written down before my memories from back then fade.