1 jan 450 ano antes da era comum - Empedocles 450 BC Empedocles came up with the 4 elements model. His theory proposed that everything was made up of combinations of 4 elements which are Water, Earth, Fire and Air. He tested his ideas experimentally and was able to show that air existed.

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Empedocles came up with the 4 elements model. His theory proposed that everything was made up of combinations of 4 elements which are Water, Earth, Fire and Air.
He tested his ideas experimentally and was able to show that air existed.

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