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may 15, 400 BC - Democritus develops the Atomic Theory

Description:

All Atoms are small, hard, indivisable, and indestructable particles.

Added to timeline:

Atomic timeline - Noah Turnquist and Trent Oberreit

ByNoah Turnquist
7 Nov 2017
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Date:

may 15, 400 BC
Now
~ 2427 years ago
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