Napoleon's Theorem/Historical Note

Historical Note on Napoleon's Theorem
The attribution of Napoleon's Theorem to is in fact dubious.

An early appearance is by in $1825$.

An earlier appearance is in one of the papers for candidates for the Gold Medal in the General Examination of the University of Dublin in October $1820$.

It is known that did have some understanding of mathematics, so the suggestion that he may have discovered this theorem is not impossible.

It is rediscovered over and over again by enthusiastic amateurs.