Third Thatcher ministry to make way for a leader more likely to win the next general election. Her successor was the Chancellor of the Exchequer John Major, who was elected on 27 November 1990, and who at 47 became the youngest Conservative Prime Minister of the 20th century. <section begin="June 1987 to July 1989" /> <section begin="July 1989 to November 1990" /> Members of the Cabinet are in bold face. Third Thatcher ministry Margaret Thatcher was Prime Minister of the United Kingdom from 4 May 1979 to 28 November 1990, during which time she led a Conservative government. She was the first woman
Diana Gould – Margaret Thatcher exchange the Falklands, but Thatcher avoided repeating that it had not. She said the full facts would be published in about 30 years, adding: "I think it could only be in Britain that a Prime Minister was accused of sinking an enemy ship that was a danger to our navy, when my main motive was to protect the boys in our navy." Gould suggested the sinking had put an end to a Peruvian peace proposal, but according to Thatcher, the proposal had not arrived in London until after the sinking. At several points the women clearly became irritated with one another.