Here are my slides on the construction of the heptakaidecagon. I have referred to them before, as detailed below, but I have edited them (slightly) since, and I wanted to have a fixed home for them. That will be this post.
I call them slides, because the page size is A6, in landscape orientation, and most pages are self-contained, except for the six pages of the Introduction. There are 80 pages, all told, last edited June 13 of this year (2026). A circle is divided into seventeen equal arcs, with ruler and compass alone, and then a proof that the circle has been so divided is given in Euclidean terms.
One purpose then is to contemplate why the Ancients did not discover the construction.

