1 jan 40 ano antes da era comum - Democritus
Descrição:
 Democritus was a Greek philosopher that discovered the atom and that it was invisible to human eye. He believed everything was made of atoms he lived in 470 -380 BC. 
Adicionado na linha do tempo:
Data:
1 jan 40 ano antes da era comum
Agora
 ~ 2067 years ago