Atomic Theory Timeline By Paige gorman 400 BCE Democritus Analogy- Lego 300 BCE Aristotle 1803 Dalton Analogy- Billiard Ball 1897 Thomson Analogy- Chocolate Chip Cookie 1908 Rutherford Analogy- Cherry with a Pit 1913 Bohr Analogy- Solar System 2000 Modern Cloud Theory Analogy- Cotton Balls Scientists- Schrodinger, Heisenberg, Einstein