Quick, what do you know about Leonardo da Vinci? He painted the Mona Lisa! He wrote his notes backwards! He designed supercool bridges and flying machines! He was a genius about, um… a lot of other… things… and, um, stuff...

Okay, I’m sure you know a bit more than that, but unless you’re a Renaissance scholar, you’re certain to find yourself amazed and surprised at how much you didn’t know about the quintessential Renaissance man when you encounter a compilation of his notebooks—Codex Arundel—which has been digitized by the British Library and made available to the public.