Maybe you already know that the first robots came on the scene in the 1950s when George Devol invented the Unimate and Stanford’s Charles Rosen developed Shakey. But, did you know there were proto-robots way, way before that? Like a steam-powered, wooden pigeon that could fly in 400 BC? (That’s before books were even a thing, y’all.) That invention, brought to artificial life by Greek mathematician Archytus of Tarentum—who also thought up the pulley and the screw and was good buddies with Plato—flew 200 meters! That’s amazing, and thanks to robot-building kits, totally something you can do, too.