Episode 2 of 2

Publication of Memoir

When: 1810
Where: Paris (contextual, not a stated publication location)
Part of: Louis Poinsot describes the two remaining Kepler–Poinsot polyhedra

Poinsot's memoir on polygons and polyhedra appeared in the Journal de l'École Polytechnique in 1810; its content is not detailed in the sources.

Louis Poinsot's memoir, Memoire sur les polygones et polyèdres, was published in the Journal de l'École Polytechnique, volume 9, pages 16–48, in 1810. The supplied passages give the title and journal citation but do not state the memoir's content. The following year, Arthur Cayley gave the Kepler–Poinsot polyhedra the names by which they are generally known today. Paris is contextual from Poinsot's Paris-based career, not a stated publication location.

Sources

Kepler–Poinsot polyhedron Wikipedia, revision of 2026-09-08
Louis Poinsot Wikipedia, revision of 2026-09-12

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.