Hercules

Before George Pal’s version of The Time Machine hit the silver screen, actual time machines were a rarity in film. But afterwards, even Moe, Larry, and Curly could throw one together in an afternoon to take them, their pal Schuyler, and their Lady friend Diane back to ancient Greece where, among other things, they restore Ulysses to the crown, kill a pair of conjoined Cyclopes, impersonate Hercules, and attract the wrath of the real Hercules.

Side note: The trio of stooges are also the first time travelers we’ve seen in film who fret over changing the course of history. Who woulda thunk? —Michael Main

After the Scarlet Centurion waylays the Avengers on their way back from the 1940s, they find themselves in an alternative 1968 where the five original Avengers stayed together under the thumb of the Scarlet Centurion.

The story includes flashbacks and previously unknown explanations of the team’s previous trip to the ’40s in Avengers #56, and at the end of the story, Goliath uses Dr. Doom’s Time Platform to banish the Scarlet Centurion back to his time—and we think this is the only time travel that actually appears in the story (apart from the flashbacks). We don’t know what happens to the alternative 1968 (now known as Earth-689, but the traveling Avengers return to the universe that we all knew and loved in the 1960s (a.k.a. Earth-616), with their memory of the whole affair wiped by the Watcher. —Michael Main

Jack and Annie take on their first mission as members of the Ancient Society of Master Librarians: retreiving a lost scroll from Pompeii! —Michael Main