The Catacombs of Rome (Catacombe di Roma) are ancient catacombs, underground burial places in and around Rome, of which there are at least forty, some rediscovered only in recent decades. Though most famous for Christian burials, either in separate catacombs or mixed together, Jews and also adherents of a variety of pagan Roman religions were buried in catacombs, beginning in the 2nd century AD, occasioned by the ancient Roman ban on burials within a city, and also as a response to overcrowding and shortage of land. The most extensive and perhaps the best known is the Christian Catacomb of Callixtus located near the Park of the Caffarella, but there are other sites, both Christian and not, scattered around the city, some of which are now engulfed by modern urban sprawl.
The Christian catacombs are extremely important for the history of Early Christian art, as they contain the great majority of examples from before about 400 AD, in fresco and sculpture, as well as gold glass medallions (these, like most bodies, have been removed). The Jewish catacombs are similarly important for the study of Jewish culture at this early period.
The word catacombs comes from the Latin root word catatumbas meaning either “among the tombs” or, according to other translations from the original Late Latin, “next to the quarry”. The later translation stems from the first excavations done to create the catacombs system, which was conducted outside of Rome near the quarry.
The Etruscan civilization dominated a territory including the area which now includes Rome from perhaps 900 to 100 BC. Like many other European peoples, it had buried its dead in excavated underground chambers, such as the Tomb of the Capitals, and less complex tumuli. In contrast, the original Roman custom had been cremation of the human body, after which the burnt remains were kept in a pot, urn, or ash-chest, often deposited in a columbarium or dovecote. Rome faced two problems in the 2nd century CE: overpopulation and a lack of land.