Margaret Thatcher
Margaret Hilda Thatcher, Baroness Thatcher, was a British stateswoman. She served as Prime Minister of the United Kingdom from 1979 to 1990. She was the longest-serving British prime minister of the 20th century. As prime minister, she implemented policies that became known as Thatcherism. Thatcher died of a stroke at the Ritz Hotel, London, at the age of 87.