Mars In Fiction: A Timeline: Adventure Novel Genre Introduction

"Fiction" refers to literature created from the imagination. Mysteries, science fiction, romance, fantasy, chick-lit, crime thrillers are all fiction genres. ... "Nonfiction" refers to literature based on fact. It is the broadest category of literature.
Forty-three million miles from the earth--a succession of the weirdest and most astounding adventures in fiction. John Carter, American, finds himself on the planet Mars, battling for a beautiful woman, with the green Men of Mars, terrible creatures fifteen feet high, mounted on horses like dragons.