How many years was Margaret Thatcher Prime Minister?

Question: For how many years was Margaret Thatcher British Prime Minister?

Answer: Margaret Thatcher who was the leader of the Conservative Party first became Prime Minister of Great Britain on May 4, 1979 and stepped down on November 28, 1990.

Therefore Mrs Thatcher was in power as the UK’s head of state for just over eleven and a half years.

The ‘Iron Lady’ was never defeated in a general election, winning all three she contested. Mrs Thatcher eventually resigned as Prime Minister after her position of leadership was challenged by Conservative, Michael Heseltine.

Following a leadership contest (that Mrs Thatcher did not enter), she was succeeded not by Heseltine but instead by the then Chancellor of the Exchequer John Major.

Margaret Thatcher was born on October 13, 1925 and passed away on April 8, 2013 aged 87.

She was Britain’s longest serving head of state during the 20th century and was the first, and so far only female British Prime Minister.

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