He challenged Aristotle's thoughts. He showed that common substances always broke down into the same elements, and defined elements into pure substances. He also found out that matter could neither be created or destroyed. (1 jan 1808 ano – 31 maio 1811 ano)
Adicionado na linha do tempo:
Data:
1 jan 1808 ano
31 maio 1811 ano
~ 3 years and 4 months