Wikipedia
Micromégas
Micromégas is a 1752 short story by the French philosopher and satirist Voltaire. Along with his story " Plato's Dream", it is a seminal work in the genre of science fiction, and is a significant development in the history of literature.
The tale recounts the visit to Earth of a being from a planet circling the star Sirius, and of his companion from the planet Saturn.
The technique of using an outsider to comment on aspects of Western culture was popular at this period. Voltaire used it again in Zadig. Montesquieu, too, applied it in Persian Letters, as did José Cadalso in Cartas marruecas and Tomás Antônio Gonzaga in Cartas Chilenas.