Dominion of Ceylon February 1948, with an amended constitution taking effect on the same date. Independence was granted under the Ceylon Independence Act 1947. Military treaties with the United Kingdom preserved intact British air and sea bases in the country; British officers also continued to fill most of the upper ranks of the Ceylon Army. Don Senanayake became the first Prime Minister of Ceylon. Later in 1948, when Ceylon applied for United Nations membership, the Soviet Union vetoed the application. This was partly because the Soviet Union believed that the Ceylon was only nominally independent, and the British still exercised control over it
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