May 4 — This Day in Women's History

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This Day in Women's History

A research-grade almanac of firsts and sentinel achievements — indexed against every day of the year.

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May 3 Calendar May 5

This Day

04May

1 indexed achievement across recorded history.

1979

Politics

Becomes first female UK Prime Minister

Enters 10 Downing Street after Conservative election victory.

Margaret Thatcher·UK Gov — Past Prime Ministers