Stellated Octahedron Day

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Earliest known promotional poster for Stellated Octahedron Day.

Stellated Octahedron Day (December 1) is a holiday celebrating the stellated octahedron, the only stellation of the octahedron.

In the News

Fiction cross-reference

Nonfiction cross-reference

External links

  • Post @ Twitter (1 December 2021)