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    • John Dalton

    British chemist and physicist (1766–1844)

    For other people named John Dalton, see John Dalton (disambiguation).

    John DaltonFRS (; 5 or 6 September 1766 – 27 July 1844) was an English chemist, physicist and meteorologist.[1] He introduced the atomic theory into chemistry.

    He also researched colour blindness; as a result, the umbrella term for red-green congenital colour blindness disorders is Daltonism in several languages.[a][2]

    Early life

    John Dalton was born on 5 or 6 September 1766 into a Quaker family in Eaglesfield, near Cockermouth, in Cumberland, England.[3][4] His father was a weaver.[5] He received his early education from his father and from Quaker John Fletcher, who ran a private school in the nearby village of Pardshaw Hall.

    Dalton's family was too poor to support him for long and he began to earn his living, from the age of ten, in the service of wealthy local Quaker Elihu Robinson.