James Harold Wilson, Baron Wilson of Rievaulx, KG, OBE, FRS, PC was a British Labour politician; one of the most prominent British politicians of the latter half of the 20th century, he served two terms as Prime Minister of the United Kingdom, firstly from 1964 to 1970, and again from 1974 to 1976. He emerged as Prime Minister after more general elections than any other 20th century premier, contesting five general elections and winning four of them (in 1964, 1966, February 1974 and October 1974). He is the most recent British Prime Minister to have served non-consecutive terms.