A V-2 rocket captured the first photograph of Earth from outer space.
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British astronomer William Lassell discovered two of Uranus' moons, Ariel and Umbriel.
The pianist Felix Mendelssohn performed for the first time in Berlin at just nine years old.
Dubbed 'Black Thursday,' the New York Stock Exchange collapsed.
Iceland's Prime Minister joined thousands of women on strike to protest gender inequality.
The EU declared that single-use plastics would be banned by 2021.
