Atomic Theory By sarahzachary Jan 1, 1789 Antoine Lavoiser Discovery Jan 1, 1794 Joseph Proust's Discovery Jan 1, 1801 John Dalton's Discovery Jan 1, 1897 J.J Thompson's Discovery Jan 1, 1910 Lord Ernest Rutherford's Discovery Jan 1, 1913 Niehls Bohr's Discovery Jan 1, 1926 Erwin Schrodinger's DIscovery Jan 1, 1932 James Chadwick's Discovery