◆ On this day

May 4

2 sourced moments from May 4 in history: Who threw the Haymarket bomb? No one ever found out (1886); and Margaret Thatcher becomes Britain's first female prime minister (1979).

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2 things happened on May 4

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1979 Society & Economy · Politics & Law

Margaret Thatcher becomes Britain's first female prime minister

The day after the Conservatives won a clear majority, the United Kingdom got its first woman in 10 Downing Street.

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1886 History · Modern

Who threw the Haymarket bomb? No one ever found out

Police charged a peaceful, rain-thinned rally in Chicago on 4 May 1886. A bomb, a trial and four hangings followed — and the bomber was never identified.

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