History: Development of the Atomic Model

Atoms have been talked about for over 2000 years. Even before Christ was born, in the Greek era a couple of men called Democritus and Leucippus, these two men were the first people to have come up with the theory of atoms.
The majority of the two Greek men's work has been lost. We only now have the writings of other people that quoted their work. They believed that all matter was composed of atoms and that the atoms could not be split in any possible way into smaller parts.
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