Research and planning: history of genre

As the genre of my trailer is horror I am looking more into the history of the genre. I am looking at the types of horror films that there are, for example refinement or parody. 

Horror films began in around 1890's, a very early example is Dracula which actually came out in 1897, these were rather typical and jumpy which was quite basic when scaring the audience. It then became more challenging to scare the audience so filmmakers had to try harder when writing their films. Another iconic horror film is The Shining which came out in 1980, so is much later than Dracula but is still vital when studying horrors. This film was inspirational to my group when creating our film because we are looking to make a traditional horror film rather than a parody. We took aspects from The Shining and refined them so that they were slightly different.