This document provides a timeline and overview of the horror film genre from 1896 to modern day. It outlines the major subgenres of horror and defines what horror films aim to accomplish. Key developments include the rise of Universal horror films in the 1930s with Dracula, the influence of Hitchcock and other directors in the 1960s who increased violence and gore, the emergence of slasher films in the 1970s-1980s, and the blockbuster popularity of horror in the 1990s leading to many remakes today. Modern horror continues to innovate with sequels, supernatural themes, and "torture porn" films.