jan 1, 1927 - Albus Dumbledore becomes the Transfiguration teacher at Hogwarts

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Armando Dippet is the Headmaster at this time. Albus Dumbledore’s career as a teacher lasts for several decades, starting in the 1920s. In 1927, he is reassigned from teaching Defense Against the Dark Arts to teaching Transfiguration after he angers the Head of Magical Law Enforcement. He eventually becomes the Headmaster in the mid-1960s.

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