Alternate history is a genre of speculative fiction of stories in which one or more historical events occur and are resolved differently than they were in real life. As conjecture based upon historical fact, alternative history stories propose What if? scenarios about crucial events in human history, and present outcomes very different from the historical record. Alternate history also is a subgenre of literary fiction, science fiction, and historical fiction; as literature, alternate history uses the tropes of the genre to answer the What if? speculations of the story.
Poul William Anderson was an American science fiction author from the 1940s until the 21st century. Anderson wrote fantasy novels, historical novels, and short stories. His awards include seven Hugo Awards and three Nebula Awards.
A future history is a postulated history of the future and is used by authors of science fiction and other speculative fiction to construct a common background for fiction. Sometimes the author publishes a timeline of events in the history, while other times the reader can reconstruct the order of the stories from information provided therein.
Gregory Dale Bear is an American writer and illustrator best known for science fiction. His work has covered themes of galactic conflict, artificial universes, consciousness and cultural practices, and accelerated evolution. His most recent work is the 2021 novel The Unfinished Land. Greg Bear has written over 50 books in total. Greg Bear was also one of the five co-founders of the San Diego Comic-Con.
A fictional universe, or fictional world, is a self-consistent setting with events, and often other elements, that differ from the real world. It may also be called an imagined, constructed, or fictional realm. Fictional universes may appear in novels, comics, films, television shows, video games, and other creative works.
Galactic empires are a common trope used in science fantasy and science fiction, particularly in works known as 'space operas'. Many authors have either used a galaxy-spanning empire as background or written about the growth and/or decline of such an empire. The capital of a galactic empire is frequently a core world, such as a planet relatively close to a galaxy's supermassive black hole, which has advanced considerably in science and technology compared to current human civilization. Characterizations can vary wildly from malevolent forces attacking sympathetic victims to apathetic bureaucracies to more reasonable entities focused on social progress and anywhere in between.
Henry Beam Piper was an American science fiction writer. He wrote many short stories and several novels. He is best known for his extensive Terro-Human Future History series of stories and a shorter series of "Paratime" alternate history tales.
Nicholas van Rijn is a fictional character who plays the central role in the first half of Poul Anderson's Technic History.
Dominic Flandry is a fictional character and the protagonist of the second half of Poul Anderson's Technic History science fiction series. He first appeared in 1951.
The Psychotechnic League is a future history created by American science fiction writer Poul Anderson. The name "Psychotechnic League" was coined by Sandra Miesel in the early 1980s, to capitalize on Anderson's better-known Polesotechnic League future history. Anderson published 21 novels, novellas and short stories set in this future between 1949 and 1957, with a 22nd published in 1968.
The Enchanter Completed: A Tribute Anthology for L. Sprague de Camp is a 2005 gedenkschrift honoring American science fiction and fantasy author L. Sprague de Camp, in the form of an anthology of short stories edited by Harry Turtledove. It was first published in paperback by Baen Books. All but one of the pieces are original to the anthology; the remaining one, Frederik Pohl's "The Deadly Mission of P. Snodgrass", was originally published in 1964 in the magazine Galaxy.
"Delenda Est" is a science fiction short story by American writer Poul Anderson, part of his Time Patrol series. It was originally published in The Magazine of Fantasy and Science Fiction of December 1955. It was first reprinted in the first edition of the "Time Patrol" series collection Guardians of Time. It was also a selection in the alternate history anthology Worlds of Maybe edited by Robert Silverberg.
The Multiverse, within DC Comics publications, is a "cosmic construct" collecting many of the fictional universes in which the published stories take place. The worlds in this multiverse share a space and fate in common, and its structure has changed several times in the history of DC Comics. The Multiverse was originally created by Perpetua, who is the mother of the Monitor, Anti-Monitor and World Forger.
The Star Fox is a science fiction novel by Poul Anderson, first published in 1965. It was nominated for the Nebula Award for Best Novel in 1965.
The Dark Between the Stars is a 1981 collection of previously-published science fiction short stories by American writer Poul Anderson.
The following is a list of works by science fiction and fantasy author Poul Anderson.
Full Spectrum is a series of five anthologies of fantasy and science fiction short stories published between 1988 and 1995 by Bantam Spectra. The first anthology was edited by Lou Aronica and Shawna McCarthy; the second by Aronica, McCarthy, Amy Stout, and Pat LoBrutto; the third and fourth by Aronica, Stout, and Betsy Mitchell; and the fifth by Jennifer Hershey, Tom Dupree, and Janna Silverstein.
This is the complete list of works by American science fiction author S. M. Stirling.
This is a complete bibliography by American science fiction author Larry Niven:
