User:Johnny Pez/Sandbox4

History of the Future
"The Snows of Ganymede" was accompanied in the Winter 1955 issue of Startling Stories with a timeline of events in Poul Anderson's ongoing future history, later known as the Psychotechnic League timeline. There was also the following editorial note:
 * Back in the early 1940's Robert A. Heinlein let it be known that he was writing stories according to a consistent "future history." All his work fitted into a pattern of history as it might happen, and an outline of that history was published so that readers could see the stories in perspective.
 * Poul Anderson, who wrote the lead novel in this issue, also uses such a history, and we're happy to publish part of it here.
 * Anderson emphasizes two points about the history: "(A) This is only a bare outline of a much more complex thing; (B) the dates given are not to be taken too seriously, for that would take the scheme out of the range of science-fiction prediction and into the realm of fantasy and prophecy, which is not one I care to inhabit."
 * He hasn't tried to make all of his stories conform to the scheme and has no wish to do so, but on the opposite page you'll find the first 250 years of Anderson's history, which closes with the action in The Snows of Ganymede. Other stories already written but which cannot be shown on the abbreviated chart are The Troublemakers, 2205; Gypsy, 2815; Star Ship, 2875; The Star Ways, 3120; Entity, 3150; and Symmetry, 3175.