Project Mastodon (XMIN)

Three adventurers return to prehistoric times, found a country, and then try to establish diplomatic relations with the United States.

This story has a very clever premise. The execution is a little bit flat and ends without much resolution, but I still find it an interesting episode. My mind is now wandering all around the subject of founding a country in time as well as place. The story first appeared in Galaxy, March 1955. You can read it for free at Project Gutenberg. A more modern version of this idea was used for the TV series, Terra Nova, in which refugees from a pollution-choked, overcrowded future establish a new country in the age of dinosaurs.

X Minus One #54
Project Mastodon
5 June 1956
19560605(054)_XMIN_ProjectMastodon.mp3
 Bob Hastings, Charles Penman, Clifford Simak (author), Floyd Mack, Frank Maxwell, John Larkin, Joseph Julian, Raymond Edward Johnson, Richard Hamilton, William Welch (producer), Daniel Sutter (director), Jerry Damon (announcer)