When did snape become defense against the dark arts teacher?
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When did Snape become Defense Against the Dark Arts teacher in-universe?
1996–1997
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Which book did Snape become Defense Against the Dark Arts teacher?
Harry Potter and the Half-Blood Prince
Severus Snape
https://en.wikipedia.org/wiki/Severus%20Snape
Harry Potter and the Half-Blood Prince is the sixth book in the Harry Potter series.
Harry Potter and the Half-Blood Prince
The book was published in the United Kingdom by Bloomsbury and in the United States by Scholastic on 16 July 2005, as well as in several other countries.
Harry Potter and the Half-Blood Prince
Severus Snape became the Defense Against the Dark Arts teacher in Harry Potter and the Half-Blood Prince, the sixth installment in the Harry Potter series. Though the book was published in 2005, its events take place in-universe in 1996–1997.