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Baroness Thatcher from WikiPedia:

Margaret Hilda Thatcher, Baroness Thatcher LG, OM, PC, FRS (born 13 October 1925) served as Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party from 1975 to 1990. She is the only woman to have held either post.

Born in Grantham in Lincolnshire, England, she read chemistry at Somerville College, Oxford and later trained as a barrister. She won a seat in the 1959 general election, becoming the MP for Finchley as a Conservative. When Edward Heath formed a government in 1970, he appointed Thatcher Secretary of State for Education and Science. Four years later, she backed Keith Joseph in his bid to become Conservative Party leader but he was forced to drop out of the election. Thatcher entered the contest herself and became leader of the Conservative Party in 1975. She became Britain's first female Prime Minister following the 1979 general election.

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