This is probably the closest we’ll ever get to seeing how Einstein derived special relativity. His original manuscripts which explain the role of light and relative velocities in the universe are, for the first time, going on display in their entirety in Jerusalem. Sure, that’s cool and all, but what I really like is how much his papers look like a problem set. Good luck to everyone on their last problem sets for the quarter; who knows, maybe they’ll end up in a museum some day.
The above paper is actually from his manuscript on general relativity, but all of Einstein’s work can be found online here.