Robert Menzies Robert Menzies Sir Robert Gordon Menzies, (; 20 December 189415 May 1978), was an Australian politician who twice served as Prime Minister of Australia, in office from 1939 to 1941 and again from 1949 to 1966. He played a central role in the creation of the Liberal Party of Australia, defining its policies and its broad outreach. He is Australia's longest-serving prime minister, serving over 18 years in total. Menzies studied law at the University of Melbourne and became one of Melbourne's leading lawyers. He was Deputy Premier of Victoria from 1932 to 1934, and then transferred to federal parliament,
Prime Minister of Portugal was sworn in on 24 September 1834, as "Presidente do Conselho de Ministros" (President of the Council of Ministers). In 1911, the official title of the prime minister became "Presidente do Ministério" (President of the Ministry). In 1933, it became again "Presidente do Conselho de Ministros". The present title "Primeiro-Ministro" (Prime Minister), attributed to the head of the Government of Portugal, was officially established by the Constitution of 1976 after the revolution of 25 April 1974 The incumbent Prime Minister of Portugal is António Costa, who took office on 26 November 2015 as the 13th Prime Minister of the Third