Enrique Lucio Eugenio Gaspar y Rimbau was a Spanish diplomat and writer, who wrote many plays (zarzuelas), and one of the first novels involving time travel with a time machine, El anacronópete.

Science fiction is a genre of speculative fiction, which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel universes, and extraterrestrial life. It is related to fantasy, horror, and superhero fiction and contains many subgenres. Its exact definition has long been disputed among authors, critics, scholars, and readers.