Pamboeotia was a major festive panegyris of all the Boeotians, celebrated probably annually. The grammarians compare the Pamboeotia with the Panathenaea of the Atticans, and the Panionia of the Ionians. Though probably quite older than this, even primitive, the festival is celebrated with the name "Pamboeotia" only starting in the 3rd century BC. The festival was celebrated in the tenth month of the Boeotian calendar, Pamboiotos, at a temple of Athena Itonia in the neighborhood of Coronea.