Pete, Michael, and Johnny's Timeline By shadowfire321 465 Democritus link text first thought of the atom Jan 1, 1643 Torricelli, Evangelista link text Invented the mercury barometer Jan 1, 1660 Boyle, Sir Robert link text Jan 1, 1777 Scheele, C.W. link text Discovered chlorine, tartaric acid, metal oxidation, and sensitivity of silver compounds to light Jan 1, 1789 Le Blanc, Nicholas link textlink text Invented the process from making soda ash from sodium sulfate, limestone and coal Jan 1, 1900 Thomsons Atomic Model link text Jan 1, 1911 Bohr's atomic model link text Jan 1, 1911 rutherfolds atmoci model link text Jan 1, 1933 Daltons atmoic model link text
