dec 31, 1803 - John Dalton
Description:
Dalton proved Aristotle wrong by proving matter did, in fact have a small indivisible particle called an atom. He also stated that atoms of the same element will always be the same, but atoms of two different elements can combine to form compounds. This was the first step to making more accurate models of the atom, and all different elements.Added to timeline:
Date:
dec 31, 1803
Now
~ 220 years ago
