Hogwarts was founded around 990 A.D. by four of the greatest wizards and witches of the age: Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw, and Salazar Slytherin. They each represented an aspect of personality that they wanted to bring out in new students. They also placed certain protective enchantments in place to ensure the well-being of their students, for which reason the castle and grounds had both always been protected with Anti-Apparition Charms. Around the same time, the four founders employed the school's first caretaker, Hankerton Humble, who would often clash with Peeves, the resident poltergeist, which he would have in common with every successive caretaker after him in the history of Hogwarts.
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