2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/10957We schematically review some of the main steps in the study of the Horizontal Branch Morphology in Galactic Globular Clusters. Since the first realization of the existence of the so-called Second Parameter Problem (2nd-P) up to now, one could perhaps see a sort of circular path. Actually, many candidate 2nd-P's were proposed during the early '70s, age has been the top-scored 2nd-P during the late '80s, and we are now back to even more candidates, including also possible intriguing combinations of some of them.AASlatex, 9 pages, no figures - Invited Review presented at the Third Conference on Faint Blue Stars, Schenectady (NY), october 14-17, 1996Astrophysicstext