Historical Events in October 1803

  • Oct 20 US Senate ratifies the Louisiana Purchase
  • Oct 21 English scientist John Dalton reads his paper on the absorption of gases to the Manchester Literary and Philosophical Soc - 1st outline of his atomic theory
  • Oct 23 English physicist John Dalton reads his essay on the absorption of gases by water and presents a series of atomic weights for 21 simple and compound elements at a meeting of the Manchester Literary and Philosophical Society