1803 - Dalton (dec 31, 1802 – feb 3, 1807)
Description:
John Dalton published his first list of elements when he printed his atomic theory and his early gas law work. Hydrogen, oxygen, azote (nitrogen), carbon and sulfur, along with their atomic weightsAdded to timeline:
Date:
dec 31, 1802
feb 3, 1807
~ 4 years