John Dalton

John Dalton was a British scientist who made many important discoveries in different fields. He had a special interest in meteorology and the atmosphere. He is well known for his research and contributions to Atomic Theory.

According to his theory, the Atom is the simplest unit and everything is made from atoms. They cannot be made or destroyed and can only be joined in special ratios. When they are moved around chemical reactions take place. John also conducted many groundbreaking researches in color-blindness that is known as Daltonism.


Quick Facts: –

  • John Dalton was born on September 6, 1766 in Eaglesfield, England, United Kingdom.
  • He was a Quaker as both of his parents were Quakers. Quakers were Christians but they were considered dissenters by the established Church of England.
  • This was also the reason why he was not allowed to attend or hold a university position. He taught instead at a school his brother founded for Quaker students.
  • He started teaching there at the age of 12 years. When he was 19, he became the principal and continued this role till he was 26 years old.
  • In 1793, Meteorological Observations and Essays became Dalton’s first ever published work.
  • In 1995, it was discovered that Dalton had a very rare form of color-blindness and he was able to see just one color, yellow.
  • His work on barometric pressure led to his publication of a series of papers called Experimental Essays.
  • Dalton was also given the nickname ‘the Father of Meteorology’ by English scientist John Frederic Daniell.
  • Dalton published the first table of relative atomic weights of atoms of the elements. It contained 6 elements.
  • In 1803, he introduced Dalton’s Law that stated ‘The total pressure of combined gases is equal to the partial pressures of each of those gases separately.
  • Dalton passed away on July 27, 1844. He was 77 years old at that time.