Premiership of Margaret Thatcher Premiership of Margaret Thatcher Margaret Thatcher served as Prime Minister of the United Kingdom from May 1979 to November 1990. She became Prime Minister after serving as Leader of the Conservative Party since 1975. In domestic affairs, Thatcher is best known for her sweeping policies concerning the affairs of the economy, including the privatisation of most nationalised industries. In foreign policy, she fought a war against Argentina and played a key role with President Ronald Reagan and Soviet leader Mikhail Gorbachev in ending the Cold War. By the late 1980s, she was alienating many senior members of her Cabinet by
Roger Thatcher the sheer size of total effort required for the operation. Thatcher was required to delete three queries from the census after personally meeting to discuss the matter with then-Prime Minister of the United Kingdom Margaret Thatcher. In 1981, Thatcher found that over the prior thirty-year-period, the number of individuals alive to reach the age of 100 had increased by a figure of sixfold. At a 1981 meeting in Sussex held by the Medical Journalists Association, Thatcher presented the findings from his research and called the results "spectacular". He reported that in 1971 there were less than 300 people in the