1980 British Prime Minister Margaret Thatcher
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What did Margaret Thatcher do for the United Kingdom?

Baroness Thatcher, Britain's first female premier, was Conservative prime minister from 1979 to 1990 and won three successive general elections.

She has died "peacefully" after suffering a stroke while staying at the Ritz hotel in central London.

Newsnight examines Lady Thatcher's significance - firstly considering what Margaret Thatcher did for the United Kingdom, as Martha Kearney reports.

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