fiction is commonly broken down into a variety of genres: subsets of fiction, each differentiated by a particular unifying tone or style; set of narrative techniques, archetypes, or other tropes; media content; or other popularly defined criterion. science fiction, for example, predicts or supposes technologies that are not realities at the time of the work's creation: jules verne's novel "from the earth to the moon" was published in 1865 and only in 1969 did astronaut neil armstrong first land on the moon.