Hari Seldon

Hari Seldon is a fictional character in Isaac Asimov's Foundation series. In his capacity as mathematics professor at Streeling University on the planet Trantor, Seldon develops psychohistory, an algorithmic science that allows him to predict the future in probabilistic terms. On the basis of his psychohistory he is able to predict the eventual fall of the Galactic Empire and to develop a means to shorten the millennia of chaos to follow. The significance of his discoveries lies behind his nickname "Raven" Seldon.

In the first five books of the Foundation series, Hari Seldon made only one in-the-flesh appearance, in the first part of the first book (Foundation), although he did appear other times in pre-recorded messages to reveal a Seldon Crisis. After writing five books in chronological order, Asimov went back with two books to better describe the initial process. The two prequels—Prelude to Foundation and Forward the Foundation—describe his life in considerable detail. He is also the central character of the Second Foundation Trilogy written after Asimov's death (Foundation's Fear by Gregory Benford, Foundation and Chaos by Greg Bear, and Foundation's Triumph by David Brin), which are set after Asimov's two prequels.

Galactic Empire First Minister and psychohistorian Hari Seldon was born in the 10th month of the 11,988th year of the Galactic Era (GE) (-79 Foundation Era (FE)) and died 12,069 GE (1 FE). (In Asimov's saga, the Galactic Era begins when the Galactic Empire is founded at an unknown date roughly 11,000 years in the future: the timeline can be deduced from some hints Asimov dropped in his other science fiction works, including the Robot and Empire series.)

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