Even in pulp science fiction populated by grim-jawed heroes, the human protagonist, if not Everyman, is a glamorized version of Super-everyman. That science fiction is didactic hardly needs proof, ...

"Sidewise in Time" isn't the first story to feature parallel worlds, but it does bring the concept to a pulp science fiction audience when the story is published in Astounding Stories in 1934.

The origin of the term “science fiction” appears. Journalist and magazine proprietor Hugo Gernsback launches a pulp magazine which initially reprints tales by Verne, Wells and Edgar Allen Poe.