“Where in Time Is Carmen Sandiego?” dropped on DOS in 1989 and took the classic globe-trotting detective formula into full-on history class mode. Instead of chasing Carmen’s gang around the world, you were jumping across centuries—tracking crooks from ancient Egypt to the Wild West—armed with a time travel database and your wits. It followed the original 1985 “Where in the World Is Carmen Sandiego?” but swapped geography for history, and it got a major Deluxe update in 1990 with sharper graphics and more cases. This was peak edutainment—half game, half sneaky learning—and if you grew up on DOS, you probably remember those blocky suspects and the satisfaction of nailing a warrant before they slipped through time.