100% verified The same day, three eras.

13 March

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Contemporary era

1930

Discovery of Pluto announced

On 13 March 1930, the Lowell Observatory announced Clyde Tombaugh's discovery of Pluto.

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Contemporary era

1881

Assassination of Alexander II

On 13 March 1881, Tsar Alexander II of Russia was killed by a bomb in Saint Petersburg.

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From the Middle Ages to the Enlightenment

1781

Discovery of Uranus

On 13 March 1781, astronomer William Herschel discovered the planet Uranus.

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