Halloween Films - Who Was the First Horror Film?

Halloween is one of the most googled search terms for the history of Halloween. So what was the first horror film? And are there any culturally significant ones that you think are worth mentioning as a historian? Oh, it's slightly trickier on about how you define a horror film, obviously, in the first place. In terms of the first films that are kind of aiming to scare you by recreating supernatural figures like ghosts or dancing skeletons, those sorts of things, or the devil. Right at the beginning, we're using amazing special effects,. some drawn from camera technology and would all have been done like double exposures and things like that.