Prime Minister of the United Kingdom century as a convention of the constitution, the position of Leader of the Opposition was given statutory recognition in 1937 by the Ministers of the Crown Act. British Prime Ministers have never been elected directly by the public. A Prime Minister need not be a party leader; David Lloyd George was not a party leader during his service as prime Minister during World War I, and neither was Ramsay MacDonald from 1931 to 1935. Prime Ministers have taken office because they were members of either the Commons or Lords, and either inherited a majority in the Commons or won more
Prime minister while the Irish prime minister is called the (which is rendered into English as "prime minister"), and in Israel he is "Rosh HaMemshalah" meaning "head of the government". In many cases, though commonly used, "prime minister" is not the official title of the office-holder; the Spanish prime minister is the President of the Government (). Other common forms include president of the council of ministers (for example in Italy, ), President of the Executive Council, or Minister-President. In the Nordic countries the prime minister is called "Statsminister", meaning "Minister of State". In federations, the head of government of subnational entities