100% verified The same day, three eras.

15 October

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Contemporary era

1917

Execution of Mata Hari

On 15 October 1917, the dancer Mata Hari was executed for espionage in France.

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From the Middle Ages to the Enlightenment

1582

Gregorian calendar takes effect

On 15 October 1582, the Gregorian calendar took effect, directly following 4 October.

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Antiquity

70 BC

Birth of Virgil

On 15 October 70 BC, the Roman poet Virgil, author of the Aeneid, was born.

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