The Guardians of Obscurity comprised a venerable group that drew its power from the Force. Sometime near 24,500 BBY, Xendor, a former Jedi, sought authorization to disseminate teachings originating from the Guardians, and also from the Chatos Academy, Order of Dai Bendu, Followers of Palawa, Kashi Mer Dynasty, the Bogan, Baran Do, and the Way of the Dark, to his fellow Jedi. Because the doctrines of the Guardians stood in opposition to the Jedi Code, his petition was refused, which then led to the establishment of the Legions of Lettow.