History of Fake Blood

Am I the only one who skipped the how to make the different types of blood? Yes? Okay...
That aside though, this is an interesting topic not only because it goes into the different types of blood, but the history as well. Not only that America had a small thing against blood in the black and white era, but that Britain loved to remake classics with a ton of blood in this time. Later, this would resurface in America and create some of the classics we know today, as well as some film tricks that would be used to avoid an X rating in future movies.
Fake blood has helped horror movies provide more of their signature touches and have helped give scares to, after all, what would a horror movie be without fake blood. Fake blood has shaped movies and will continue to into the future.