John Dalton was born on September 6, 1766, in Englesfield, England. It was an important English chemist who developed an atomic theory. His life was devoted to teaching and research.
Dalton was the son of Joseph Dalton and Deborah Greenup. He had two brothers, Jonathan and Mary. He received his first teachings from his father and a teacher, John Fletcher.
He received some instruction in math and science from a distant relative, Elihu Robinson. In 1781, he became assistant to his cousin George Bewley at a school in Kendal. He taught with his brother at a school in Englesfield. He stayed in office until he was transferred to York in 1799 when he actually became a teacher.
In 1787 he began to write down his meteorological observations. It lasted fifteen years and in total more than 200.00 observations were made. The annotations were published in 1793. In this book there have been some works on gases, and from it also originated some fundamental ideas of chemistry.
In Manchester, he taught math. He has done most of his research. As a celibate, Dalton lived for 26 years with the Reverend Willians Johns. He joined the Literary and Philosophical Society. He made some discoveries about gas formation, evaporation, heat expansion, weather, and vapors.
His further experiments led to the Atomic Theory, the best known to date. Dalton made a table of atomic weights based on mathematical and chemistry calculations.
Later, he was president of the Literary and Philosophical Society. He continued his research for a long time.
In 1825, he received the Royal Society Medal for his work on Atomic Theory. It is known by the Dalton Law, Partial Pressure Laws and Daltonism. Dalton could not distinguish some colors, so he studied this disease, which received its name, Daltonism.
John Dalton died on July 27, 1844, in the city of Manchester.