“The big thing in Victorian England was wallpaper which was dyed a certain shade of green. Green was considered to be a calming colour, and this particular shade the most beautiful green in the world. It was used not only in wallpaper, but also to dye dresses, fake flowers for hats, and even confectionery.

The dye was called Scheel’s Green, after its inventor. Its key ingredient? Arsenic. Yes, people were happily covering their walls in deadly poison, and quite a few people died as a result. Putting arsenic in wallpaper and other items was never banned by the government, it just fell out of fashion.”

-PripyatHorse