1h 1min, jan 1, 350 y BC - Aristotle, expanding on Empedocles, proposes idea of a substance as a combination of matter and form. Describes theory of the Five Elements, fire, water, earth, air, and aether. This theory is largely accepted throughout the western world for over 1000 years.
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Date:
1h 1min, jan 1, 350 y BC
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~ 2375 years ago
