Lucian's True History
Author: last_name: Lucian of Samosata
Language: English
Year: 1894

One of the earliest works of science-fiction (nearly 2,000 years old). It has space travel (including war in space), lunar civilization, and aliens, along with more fantasy elements, such as the afterlife and Greek gods.  A satire on contemporary tall tales. 
 - Summary by Terry Kroenung