Maurice Harold Macmillan, 1st Earl of Stockton, OM, PC, FRS (10 February 1894 – 29 December 1986) was a British statesman of the Conservative Party who served as Prime Minister of the United Kingdom from 1957 to 1963. Nicknamed "Supermac", he was known for his pragmatism, wit and unflappability. Macmillan served in the Grenadier Guards during the First World War. He was wounded three times, most severely in September 1916 during the Battle of the Somme. He spent the rest of the war in a military hospital unable to walk, and suffered pain and partial immobility for the rest of his life. After the war Macmillan joined his family business, then entered Parliament in the 1924 General Election, for the northern industrial constituency of Stockton-on-Tees. After losing his seat in 1929, he regained it in 1931, soon after which he spoke out against the high rate of unemployment in Stockton-On-Tees, and against appeasement. Rising to high office during the Second World War as a protégé of wartime Prime Minister Winston Churchill, Macmillan then served as Foreign Secretary and Chancellor of the Exchequer under Churchill's successor Sir Anthony Eden. When Eden resigned in 1957 following the Suez Crisis, Macmillan succeeded him as Prime Minister.