The Past Through Tomorrow is a collection of science fiction stories by American writer Robert A. Heinlein, first published in 1967, all part of his Future History.
Most of the stories are parts of a larger storyline about the future rapid collapse of sanity in the United States, followed by a theocratic dictatorship, a revolution, and the establishment of a free society that does not save the pseudo-immortal Lazarus Long and his Howard Families from fleeing Earth for their lives. Most editions of the collection include a timeline showing the chronology of the stories (including stories never written, such as "The Stone Pillow", which was to occur during the period of the theocracy), times of birth and death of the significant characters, and commentary by Heinlein.
The specific short stories included vary with the edition, but typically include:
The 1975 and 1986 paperback editions, and likewise the 1967 hardback, are missing the story "Universe" (Orphans of the Sky).
While regretting that several Future History stories Heinlein planned were never written, Algis Budrys praised the collection as "some of the finest writing [science fiction] has ever known". He described the book as "a magnificent compendium, coincidentally a rewarding and perhaps accurate cross-section of a writer's career", and required for any science fiction library.[1] In February 1968 he named the book the "best publishing idea of the year".[2]