Premiership of Margaret Thatcher that Thatcher proceed cautiously in working with black communities because she believed they gave cannabis to babies. 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
Thatcher baronets Macmillan in 1984. The baronetcy was created by the Queen on the recommendation of Prime Minister John Major for Denis Thatcher, following the resignation of his wife Margaret Thatcher in November 1990. The Speaker of the House of Commons was pressed to allow a debate relating to the revival of hereditary titles, but referred MPs to "" and in particular to the guidance that "It has been ruled that the Prime Minister cannot be interrogated as to the advice that he may have given to the sovereign with regard to the grant of honours". Major told the Commons Public Administration