Early Christian art survives from dates near the origins of Christianity. The oldest surviving Christian paintings are from the site at Megiddo, dated to around the year 70, and the oldest Christian sculptures are from sarcophagi, dating to the beginning of the 2nd century. Until the adoption of Christianity by Constantine Christian art derived its style and much of its iconography from popular Roman art, but from this point grand Christian buildings built under imperial patronage brought a need for Christian versions of Roman elite and official art, of which mosaics in churches in Rome are the most prominent surviving examples.