The document discusses the history and evolution of the horror genre from the 1930s to the 2000s. In the 1930s, horror films were based on classic monsters like Dracula and Frankenstein due to limited technology. During the 1950s-60s, films like Godzilla used monsters to reflect fears around nuclear weapons. The 1970s saw more realistic special effects added. By the 2000s, hybrid genres like horror-comedy became popular, and audiences grew with advances in CGI technology. The document also examines horror subgenres, the impact of technology, film classification systems, and censorship issues.