https://www.peruforless.com/blog/quipu/ https://www.peruforless.com/blog/quipu/ https://en.wikipedia.org/wiki/Quipu?useskin=vector https://en.wikipedia.org/wiki

https://www.peruforless.com/blog/quipu/ https://www.peruforless.com/blog/quipu/ https://en.wikipedia.org/wiki/Quipu?useskin=vector https://en.wikipedia.org/wiki/Quipu?useskin=vector they were more like ledgers or logs... not money. (Early databases perhaps?)