Festivals named include Quinquatria (a purification of arms), the birthday of Rome, Neptunalia and two Rosaliae at which the military standards were adorned with roses.[6] The calendar prescribes sacrifices for deities of traditional Roman religion such as the Capitoline triad of Jupiter, Juno, and Minerva, as well as Mars and Vesta.[6] About twenty members of the imperial family are honored as divi, divinized mortals, including six women and Germanicus, who was never an emperor.[1] Twenty-seven of the forty-three entries that remain legible pertain to Imperial cult.[1] No Eastern mystery religions, which were widely celebrated in the Empire during this period, nor local cults are recorded as an official observance of the army,[7] but the feriale was found in the temple with a dipinto depicting a Roman officer offering incense to the local deity Iarḥibol, and Romans, including a standard-bearer with the cohort's vexillum, standing before the altar of the Syrian gods Iarḥibol, Aglibol and Arṣu.[8] It has also been argued that the three gods represent the emperors Pupienus, Balbinus, and Gordian III.[5] A copy of the calendar may have been issued to each unit throughout the Empire to further military cohesion as well as Roman identity among troops from other cultures.[4][9]
The cache of documents was discovered by a team of archaeologists from Yale University working at Dura-Europos in 1931–32.[1] It was first published by R. O. Fink, A. S. Hooey, and Walter Fifield Snyder (1940), "The Feriale Duranum," Yale Classical Studies 7: 1–222.[3]
Partial list of festivals
In 2011, a facsimile of the partial document was part of the Dura-Europos exhibition at Boston College, and it contained the following translation:
March 19, Quinquatria, a supplication; until March 23, supplications
Snyder, Walter F., Fink, R.O., and Hoey, A.S., eds. (1940). The Feriale Duranum. Yale Classical Studies, vol. 7. New Haven: Yale University Press, pp. 1–221.