theblackhole: In Greek mythology, Lycaon was a king of Arcadia who, in the most popular version of the myth, killed and cooked his son Nyctimus and served him to Zeus, to see whether the god was sufficiently all-knowing to recognize human flesh.
Disgusted, Zeus transformed Lycaon into a wolf, while Nyctimus was restored to life.

This is one of the oldest mention of lycanthropy in history.