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• 1473Nicolaus Copernicus Born, Polish mathematician and astronomer

Nicolaus Copernicus  (19 February 1473 – 24 May 1543) was a Renaissance mathematician and astronomer who formulated a model of the universe that placed the Sun rather than the Earth at the center of the universe. The publication of this model in his book De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres) just before his death in 1543 is considered a major event in the history of science, triggering the Copernican Revolution and making an important contribution to the Scientific Revolution.

• 1878Thomas Edison patents the phonograph.
• 1986 – The first module of the Soviet space station Mir was launched, establishing the first long-term research station in space.

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