Journey to Mars space for them. A Martian revolution disrupts his plans, however; he writes no account of his adventures prior to an attempt to return to the red planet. Gustavus W. Pope (1828–1902) was a physician based in Washington DC, who wrote several books on a range of subjects (including one on Shakespeare's supposed Roman Catholicism). Pope followed his "Journey to Mars" with "Journey to Venus the Primeval World; Its Wondrous Creations and Gigantic Monsters" (1895), in which Hamilton and Suhlamia visit that planet. "Journey to Mars" has been reprinted in two modern editions, from Hyperion Press in 1974 and from Wildside
The Gods of Mars to Earth in pre-technological eras, particularly with the inclusion of kingdoms, empires or religious societies. Spacecraft may appear, but are not central to the story (something which makes these tales distinct from Space Opera, where spaceships are usually a key focus of the narrative). There were some Planetary Romances prior to the publication of the Barsoom novels, but "A Princess of Mars" and "The Gods of Mars" and other novels in the Barsoom series were the most influential on the numerous similar stories that were published subsequently. Burroughs's vision of Mars was loosely inspired by astronomical speculation of the time,