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Events on Saturday 25 April 1840 1
1781 – 1840Simeon Denis Poisson (1781-1840)Died 25 April 1840, aged 58Simeon Denis Poisson was a French mathematician and physicist known for his work on probability theory, statistics, and mechanics, including the Poisson distribution that bears his name. He contributed significantly to electricity, magnetism, and celestial mechanics. He died on 25 April 1840 in Paris.