Definition:Regular Dodecahedron/Historical Note

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Historical Note on the Regular Dodecahedron

In The Elements, this object is referred to just as a dodecahedron.

In the words of Euclid:

A dodecahedron is a solid figure contained by twelve equal, equilateral, and equiangular pentagons.

(The Elements: Book $\text{XI}$: Definition $28$)


According to the Pythagorean tradition, the regular dodecahedron was the symbol associated with the sphere of the fixed stars, and later with the quintessence of the medieval alchemists.


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