A copy of id Software's Super Mario Bros. 3 PC port was donated to a museum

Back in 2015, John Romero shared a video showing off a demo that id Software developed in 1990 to sell Nintendo on the idea of a PC port of Super Mario Bros. 3. Obviously, Nintendo went on to reject the studio's pitch, but the code that was developed to allow the game to smoothly work on PC did go on to play an important role in id's future games. Well, this piece of gaming history is now going to the Strong National Museum of Play.