This page is part of the SuperFriends timeline, or a chronology of events that took place in the SuperFriends Universe -- Earth-1A (fan name) / Earth-Thirty-Two (official designation) of the DC Multiverse.
In 3488, one such cyborg, Cybron; was a dictator that was overthrown by other cyborgs. Because he had lost his power over mankind, he decided to travel back to the 20th century and rule the human race of that era.
Upon arrival, he thought that humanity would be easy to conquer, since they were so primitive during that period. To his surprise, it wasn't as easy as he anticipated, because he is defeated fairly quickly by Superman, after he only managed to take over the city of Metropolis.