Psychohistory (fictional)
Psychohistory is a fictional science in Isaac Asimov's Foundation universe which combines history, sociology, etc., and mathematical statistics to make general predictions about the future behavior of very large groups of people, such as the Galactic Empire. It was first introduced in the five short stories (1942–1944) which would later be collected as the 1951 novel Foundation.
Read more about Psychohistory (fictional): Axioms, The Prime Radiant, Development, Limitations, Asimov On Psychohistory, Asimovian Psychohistory and Similar Concepts in Other Fiction, Beyond Fiction, In Role-playing Games, Literary Influences