In college, I wrote this essay about Clark Kimberling, who maintains the Encyclopedia of Triangle Centers. The essay covers triangle geometry's rise (which includes Napoleon), its fall (from "brute force" methods), and its continued following ("the melody lingers on")
Coincidence of LinesThe mathematician Clark Kimberling estimates that he spends between two and five hours each day, seven days a week, maintaining his online encyclopedia of triangle centers.leaflet.pub