J.B. Sutherland from Detroit patented refrigerated railroad cars.
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The New York and Harlem Railroad became the first railroad to operate in the US.
NASA launched the Mars Science Laboratory probe, which carried the Curiosity Rover to Mars.
The Queen Adosinda of Asturias was placed in a convent at San Juan de Pravia for the rest of her life.
France successfully launched their first satellite, Astérix, into Earth's orbit.
The UK-based computer company Raspberry Pi released their $5 (£4) computer.
