Parallel universe (Love Is an Accuracy Algorithm)
From Tardis Wiki, the free Doctor Who reference
In a parallel universe the Aztec Empire repelled the Spanish and went through an Industrial Revolution of their own, eventually fighting World War I against a variety of European countries using mechs with flamethrowers, cannons, and various types of guns. (PROSE: Love Is an Accuracy Algorithm [+]Loading...["Love Is an Accuracy Algorithm (short story)"])
