Note: This article was part of the e-book "Hogwarts: An Incomplete and Unreliable Guide", which is part of the Pottermore Presents collection. It's similar to the original version published on Pottermore, with minor additions.
Only the beginning of this text can be displayed here for research purposes. I apologize!
The Mirror of Erised is a very old device. Nobody knows who created it, or how it came to be at Hogwarts School. A succession of teachers have brought back interesting artefacts from their travels, so it might have arrived at the castle in this casual manner, either because the teacher knew how it worked and was intrigued by it, or because they did not understand it and wished to ask their colleagues’ opinions.
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