100% verified The same day, three eras.

1 May

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Contemporary era

1931

Empire State Building opens

On 1 May 1931, the Empire State Building opened in New York, then the world's tallest skyscraper.

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Contemporary era

1851

Great Exhibition opens

On 1 May 1851, the first World's Fair opened at London's Crystal Palace.

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From the Middle Ages to the Enlightenment

1707

Birth of Great Britain

On 1 May 1707, the Acts of Union joined England and Scotland into the Kingdom of Great Britain.

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