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John Herschel

John Frederick William Herschel (March 7, 1792 - May 11, 1871) English mathematician and astronomer.

Son of astronomer William Herschel.

John Herschel orginated the use of the Julian date system in astronomy.

External link

http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Herschel

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