-
460
Democritus
-
John Dalton
-
Atomic Theory
-
William Crooks
-
Dmitri Mendeleev
-
John Newlands
-
John Dalton died
-
J.J Thomson
-
Periodic Table
-
Ernest Rutherford
-
NIels Bohr
-
Newlands died
-
Mendeleev died
-
Crooked died
-
Rutherford died
-
Thomson died
-
Bohr died
-
Aristotle