A strange little side quest
A little context makes Dream Puppy: Spot the Differences more fun to place on the gaming map. The first crossword puzzle book appeared in 1924 in a cautious initial printing of 3,600 copies, complete with a free pencil. The timeline takes another interesting turn: The Oregon Trail began in 1971 when three student teachers created a computer simulation to help Minnesota schoolchildren learn American history. The details change, but the appeal of learning a system and trying again is remarkably persistent.