Reading a book on the history of mathematics. It was published in 1923.
There is a lot of casual racism in it. Stuff like "primitive savages", "races of lesser intelligence", and a prevailing notion that contact with Europeans is a prerequisite to being smart enough to understand numbers.
I have a hard copy, but it's also available on archive.org. However, it is missing pages.
A bunch of technomancers in the fediverse. Keep it fairly clean please. This arcology is for all who wash up upon it's digital shore.