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Base type: IH1
Hypothesis of philosophers in ancient Greece according to which all the materials constituting the world would be composed of four elements: Fire, Air, Earth and Water.
Although they can be associated with the four most common states of matter, Lavoisier and French chemists have ended the doctrine of the four elements as a physical theory.
Associated with Fire the Phoenix, Air the Butterfly, Earth the Quadruped and Water the Fish.