What day is 1781-03-13 ?

Pluto was discovered by William Herschel.

Pluto (planet URANOSU / Uranus), the astronomer William Herschel(1738 - 1822) was born in Germany was found.

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How many days before the anniversary?

Saint Patrick's Day

A traditional celebration of Ireland's patron saint.

Scots celebrated April Fool's with the tradition of

Scots celebrated April Fool's with the tradition of "Hunting the Gowk".

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1781