The 100: A Ranking of the Most Influential Persons in History is a 1978 book by Michael H. Hart, an astrophysicist, alien life researcher and white separatist. It was the first book of Hart, which was reprinted in 1992 with revisions. It is a ranking of the 100 people who, according to Hart, most influenced human history.Hart wrote another book in 1999, entitled A View from the Year 3000, voiced in the perspective of a person from that future year and ranking the most influential people in history. Roughly half of those entries are fictional people from 2000–3000, but the remainder are actual people. These were taken mostly from the 1992 edition, with some re-ranking of order.