John Major became Prime Minister of the United Kingdom on 28 November 1990, succeeding Margaret Thatcher.

Quick Scoop: Key Facts

  • John Major was elected leader of the Conservative Party in a leadership contest in late November 1990.
  • He was then invited by Queen Elizabeth II to form a government and formally took office as prime minister on 28 November 1990.
  • His premiership lasted until 2 May 1997, when he left office after the general election won by Tony Blair’s Labour Party.

In simple terms: if you’re wondering “when did John Major become prime minister?” the precise date you’re looking for is 28 November 1990.

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