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'''John Dalton''' proposed that all matter is composed of [[atom]]s. He also proposed the ideas of [[element]]s and [[compound]]s. He was the first since [[Democritus]] in ancient times to do so.
'''John Dalton''' proposed that all matter is composed of [[atom]]s. He also proposed the ideas of [[element]]s and [[compound]]s. He was the first since [[Democritus]] in ancient times to do so.
[[category:scientists]]