John Dalton
![Dalton by [[Thomas Phillips]], 1835](https://upload.wikimedia.org/wikipedia/commons/0/00/John_Dalton_by_Thomas_Phillips%2C_1835.jpg)
John Dalton (; 5 or 6 September 1766 – 27 July 1844) was an English chemist, physicist and meteorologist. 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.
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