They both proposed the theory that all matter consists of atoms.
He pubish is own atomic theory in 1803 developed his atomic theory by observations gathered from many experiments .
The atomic model l
Democritus did not have a theory; he was just taking one side in a debate. Democritus did not have any experimental or observational evidence to support his point of view.The other side of the debate...
They both said the atom was the size of a baseball and were correct.