The Educational Decrees were created by Ministry of Magic Senior Undersecretary, Dolores Umbridge. The more things she didn’t like, the more rules were set in place.
I purchased this from a wonderful seller on Etsy: Magicbimbo. She has many great Harry Potter ornaments she makes and sells!
I’ve also purchased the Three Brothers ornament, the Azkaban Prisoner Plaque, the Fat Lady Portrait, the Mirror of Erised, and the Mermaid Window from her.