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Birthday
Location: Cumberland, England.
Born into a Quaker family.
Father: Joseph Dalton
Mother: Deborah Greenup -
Early Life
Since Dalton was raised as a 'Quaker' and became a big part of a christian movement. At the age of 15, he assisted his older brother named Johnathan, into running a Quaker school located in Kenda, Cumbria. -
Acceptation in Manchester's Literay and Philosophical Society
In 1794, shortly after his arrival in Manchester, Dalton was elected a member of the Manchester Literary and Philosophical Society, and a few weeks later he made his first paper on "Extraordinary facts relating to the vision of colors", in which he believed that shortage of color perception was caused .by discoloration of liquid in the eyeball, -
Becoming a Secretary of Manchester's Literary and Philosophical Society
Dalton was granted secretary of the Manchester Literary and Philosophical Society, -
EXPERIMENTAL ESSAYS
He displayed and elaborated a vital series of papers, named "Experimental Essays" on the constitution of mixed gases; on the pressure of steam and other vapors at different temperatures, both in a vacuum and in air. Also on evaporation and on the thermal expansion of gases. -
Atomic Weight
Dalton printed his very first published table of relative atomic weights. He gave no sign in this first paper how he came up with his numbers. Although, in his laboratory notebook under the date 6 September 1803, there is a list in which he settles out the relative weights of the atoms of a number of elements, taken from analysis of water, ammonia, carbon dioxide, etc. by chemists at the time of his his existence. -
John Dalton's Atomic Theory
Then on October 21, 1803' he announced his atomic theory to the society.His five main points are elements are made of extremely small particles called atoms. Atoms of a given element are identical in size, mass and other properties; atoms of different elements differ in size, mass and other properties. Atoms cannot be subdivided, created or destroyed. -
French Acadmie Des Siences
Dalton had joined and been apart of a corresponding member of the French Académie des Sciences -
1st stroke
Dalton suffered from a stoke 1837. -
2nd stroke
Dalton suffered from a second stroke in 1838. It left him with speech impediment but could still work. -
1840 Phosphates & Arsenates Paper
A unknown paper on the phosphates/arsenates, often defined as a weaker work, was rejected by the Royal Society, and was eager enough to published it himself. He took a course soon afterwards and created 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 analyzing sugar) elaborate on his discovery, considered by him as second in importance only to the atomic theory, that specific anhydrates when dissolved. -
3rd stroke
In May, 1844 he had one more stroke, and on July, 26,he was writing his last meteorological observation, with a trembling hand. -
Dalton's Death
Located in Manchester, John fell from his bed and was found dead by his attendant. His Atomic Theory remains vital and well known as of the physical science. He had Forty thousand Mancunians who turned out to pay their respects at his funeral. He was buried in Manchester, at the Ardwick cemetery. Currently, the cemetery is now a playing field, but pictures of the original grave are still present.
