The Universal horror cycle of the 1930s and 1940s shaped the entire genre, and continues to exert its influence today. Its incarnation of figures like Count Dracula and Frankenstein's Monster remain definitive, surpassing the original authors in some cases, and setting the cinematic standard for classic Gothic horror. It also established the notion of a shared universe for the first time onscreen, setting a trend that the Marvel Cinematic Universe would ultimately capitalize on.
Source：https://www.cbr.com/best-universal-monster-movies-halloween/
