Margaret Thatcher Margaret Thatcher Margaret Hilda Thatcher, Baroness Thatcher, (; 13 October 19258 April 2013) was a British stateswoman who served as Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party from 1975 to 1990. She was the longest-serving British prime minister of the 20th century and the first woman to hold that office. A Soviet journalist dubbed her "The 'Iron Lady, a nickname that became associated with her uncompromising politics and leadership style. As Prime Minister, she implemented policies known as Thatcherism. A research chemist at Somerville College, Oxford, before becoming a barrister, Thatcher
Prime Minister of Brazil appointment) could sometimes come into conflict. 19th century abolitionist leader and historian Joaquim Nabuco said: The shortest prime-ministership was the first of the three periods of Zacarias Góis e Vasconcellos in office, when he occupied the presidency of the Council for just a few days in May 1862 before being replaced. The longest continuous prime-ministership corresponded to the period when the Viscount of Rio Branco was in office: he served as President of the Council from March 1871 until June 1875. The Viscount of Rio Branco served as Prime Minister only once, however, and his period of service as Prime