-
400
Start of Middle Ages
-
400
The Start of the Alchemists
-
Sep 12, 1500
End of Middle Ages
-
Phosphorous by H.Brand
-
Naming of the Elements
-
Magnesium by J.Black
-
Hydrogen Discovered by H. Cavendish
-
Oxygen by C.W.Scheele
-
Nitrogen by D.Rutherford
-
Chlorine by C.W.Scheele
-
Beryllium by L.N.Vauquelin
-
Nuclei Atom discovered by Enrico Fermi
-
Sodium by H.Davy
-
Potassium by H.Davy
-
Boron by J.L.Gay-Lussac & L.J.Thénard
-
Calcium by H.Davy
-
Lithium by J.A.Arfwedson
-
Silicon by J.J.Berzelius
-
Aluminum by H.C.Ørsted
-
Helium discovered by P.Janssen and J.N.Lockyer
-
Fluorine by H.Moissan
-
Neon by W.Ramsay & M.W.Travers
-
Argon by Lord Rayleigh & W.Ramsay
-
The Plum Pudding Model was discovered by J.J Thompson
-
Rutherfords Atom experiment conducted
-
Niels Bohrers discovers the Orbitals
-
Element 93 was discovered
-
Start of the Cold War
-
End of the Cold War
-
USA and USSR argue over naming Elements
