1871

From Marvel Database

In 1871:

• A chronovore caused a time disturbance near Dodge City. As a consequence of this, Alexander the Great, Genghis Khan and Napoleon Bonaparte began a war for terrain and resources, until they eventually ally with each other against a common threat, an alien army of Krozzar led by General Alzzan. Western heroes (including Two-Gun Kid, Rawhide Kid, Kid Colt and the Phantom Rider) working alongside time-traveling heroes and Albert Einstein, helped to defeat the Alzzan, to solve the time crisis and to defeat time-traveling Doctor Doom. (Reference: The Weird, Weird West)