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Born in Eaglesfield, Cumberland, England.
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Dalton proceeded to print his first published table of relative atomic weights. Dalton provided no indication in this first paper how he had arrived at these numbers. However, in his laboratory notebook under the date 6 September 1803[4] there appears a list in which he sets out the relative weights of the atoms of a number of elements, derived from analysis of water, ammonia, carbon dioxide, etc. by chemists of the time.
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He made his first announcement that hisd discovery.
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Dalton suffered a second stroke in 1838 left him with a speech impediment, though he remained able to do experiments
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In 1840 a paper on the phosphates and arsenates, often regarded as a weaker work, was refused by the Royal Society, and he was so incensed that he published it himself. He took the same course soon afterwards with four other papers, two of which (On the quantity of acids, bases and salts in different varieties of salts and On a new and easy method of analysing sugar) contain his discovery, regarded by him as second in importance only to the atomic theory, that certain anhydrates, when dissolved
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In May 1844 he had yet another stroke; on 26 July he recorded with trembling hand his last meteorological observation.
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He died.