Conservative Party leader for 15 years, Margaret Hilda Thatcher (born 1925) became the first female prime minister of Great Britain and served in that post from 1979 to 1990, longer than any other Bri...
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Margaret Thatcher was the first and only (so far) woman prime minister of the United Kingdom. She was in office for eleven years that made her the longest continually serving prime minister in parli...
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Margaret Hilda Thatcher
