This document discusses the history of rum and cocktails, focusing on the origins and evolutions of the Mai Tai cocktail. It describes how the original Mai Tai recipe from the 1940s called for 17-year old J.W. Ray & Nephew rum, but this became unavailable so Trader Vic substituted other rums. Over the decades, as rum availability changed, the Mai Tai recipe was further adjusted by Trader Vic to blend different rums to maintain the original flavor profile. The document also provides brief mentions of other classic cocktails like the Negroni.