History and biography is all I read any more. I feel my time is wasted if I don’t learn something from what I read. This from the man who in his youth read every SF classic and pulp F&SF he could find.
Kudos to you. Have you read "The Muslim Discovery of Europe" by Bernard Lewis? An extraordinary book, an eye-opener.
Over The Edge of the World. Magellan’s actual chronicler provides a lot of the content.
1491 America before columbus