The Onomasticon has traditionally been dated before 324, on the basis of its sparse references to Christianity, and complete absence of remarks on Constantine the Great's buildings in the Holy Land. The work also describes traditional religious practices at the oak of Mamre as though they were still happening, while they are known to have been suppressed soon after 325, when a church was built on the site.Barnes, "Onomasticon", 413. Eusebius references the encampment of the Legio X Fretensis at Aila (in southern Israel, near modern Aqaba and Eilat); the X Fretensis was probably transferred from Jerusalem to Aila under Diocletian (r. 284–305).Barnes, "Onomasticon", 413 n. 4.
