Wow, these are absolutely brilliant! I've seen some 1800s sociological charting before and it's not very interesting. They seemed to struggle with the idea of visualization at all and resorted to a lot of charts and tables that the reader was to study and interpret, on account of there not being a lot of statistics that were invented yet. These aren't just strangely modern, each one is wonderfully unique and artistic and would be delightfully creative on a modern data-driven site like 538 or in the New York Times. Maybe I just wasn't reading the best turn-of-the-century social science, which is not a field I'm an expert in, but these seem completely out of their time.