Descriptions of the Lupercalia festival of 44 BC attest to its continuity; Julius Caesar used it as the backdrop for his public refusal of a golden crown offered to him by Mark Antony. The Lupercal cave was restored or rebuilt by Augustus, and has been speculated to be identical with a grotto discovered in 2007, 50 feet (15 m) below the remains of Augustus' residence; according to scholarly consensus, the grotto is a nymphaeum, not the Lupercal. The Lupercalia festival is marked on a calendar of 354 alongside traditional and Christian festivals. Despite the banning in 391 of all non-Christian cults and festivals, the Lupercalia was celebrated by the nominally Christian populace on a regular basis into the reign of the emperor Anastasius. Pope Gelasius I (494–96) claimed that only the "vile rabble" were involved in the festival and sought its forceful abolition; the Senate protested that the Lupercalia was essential to Rome's safety and well-being. This prompted Gelasius' scornful suggestion that "If you assert that this rite has salutary force, celebrate it yourselves in the ancestral fashion; run nude yourselves that you may properly carry out the mockery".