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He was born on September 6, 1766 in Eaglesfield, England
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In 1794 he was elected a member of the Manchester Literary and Philosophical Society. Also, not so long after he made his first thesis about "Extraordinary facts relating to the vision of colours", in which he theorised that deficit on the perception of color was caused by discolouration of the liquid medium of the eyeball.
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He becomes a secretary of the Manchester Literary and Philosophical Society in 1800.
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He presented an important series of essays on the constitution of mixed gases, steam and other vapours pressure on different temperatures, both in a vacuum and in air, on evaporation, and on the thermal expansion of gases. These essays were named "Experimental Essays". They were published in the "Memoirs of the Lit & Phil" in 1802.
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In 1803 John Dalton, proposed his atomic theory of matter, which would later state that as temperature rises, gasses expand, and the cause of the "Aurora borealis", otherwise known as the Northern Lights, visible in Sweden. Then on October 21, 1803, John Dalton first announced of his famous atomic theory.
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In 1810, Sir Humphry Davy asked Dalton to offer himself as a candidate for the fellowship of the Royal Society, but Dalton turned him down. It is possibly because of economical reasons.
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In one of the memories that was read in 1814, Dalton explains the principles of volumetric analysis.
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In 1824 he was made a corresponding member of the French Science Academy.
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The first part of his second volume was issued in 1827. However, the second part of vol. ii. never came out.
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In 1830 john was elected as one of its eight foreign associates in place of Davy.
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Dalton had a minor stroke in 1837.
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Dalton had a second stroke in 1838 which left him with a speech impediment, though he was still able to do experiments.
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In 1840 an essay about the phosphates and arsenates, was refused by the Royal Society, but he published it himself because he was insistent on publishing it. He did the same things later on with four other essays, two of which contained his discovery about the the atom theory and about some anhydrides when dissolved.
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In May 1844 he had another stroke and then the 26th of July he wrote down his last meteorological observation.
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On July 27, in Manchester, Dalton fell from his bed and was found dead by his attendant. He had forty thousand Manchurians who went to his funeral to pay their respects. He was buried in Manchester's Ardwick cemetery which is now a playing field, but pictures of the original grave are published.
