Third Thatcher ministry 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 to hold that office. During her premiership, Thatcher moved to liberalise the British economy through deregulation, privatisation, and the promotion of entrepreneurialism. This article details the third government Thatcher led at the invitation of Queen Elizabeth II from 1987 to 1990. The Conservatives were elected for a third successive term in June 1987, with a majority of 102 seats. It enabled Margaret Thatcher to become the longest-serving
Historical rankings of Prime Ministers of the United Kingdom prime ministers were ranked in the top 100. Winston Churchill was voted greatest Briton, the Duke of Wellington was in 15th place (though not featured in contemporary polls as he was a 19th-century politician), Margaret Thatcher was in 16th place, Tony Blair was 67th and David Lloyd George was 79th. The BBC television programme "The Daily Politics" asked viewers in 2007 to select their favourite Prime Minister. Margaret Thatcher topped the list with 49% of the vote, with Clement Attlee coming second with 32%. Historical rankings of Prime Ministers of the United Kingdom "The Times" constructed a poll for the