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
Margaret Thatcher Thatcher's policies. The 1981 England riots resulted in the British media discussing the need for a policy U-turn. At the 1980 Conservative Party conference, Thatcher addressed the issue directly, with a speech written by the playwright Ronald Millar that included the lines: "You turn if you want to. The lady's not for turning." Thatcher's job approval rating fell to 23% by December 1980, lower than recorded for any previous Prime Minister. As the recession of the early 1980s deepened, she increased taxes, despite concerns expressed in a March 1981 statement signed by 364 leading economists, which argued there was "no