Chapel of the Ascension, Jerusalem after the death and resurrection of Jesus, early Christians began gathering in secret to commemorate his Ascension at a small cave on the Mount of Olives. The issuance of the Edict of Milan by the Roman Emperor Constantine I in 313 made it possible for Christians to worship overtly without fear of government persecution. By the time of the pilgrim Egeria's travels to Jerusalem in 384, the spot of veneration had been moved to the present location, uphill from the cave, which had been integrated into the Constantinian Church of Eleona, dedicated by then just to Jesus' teachings about good
Resurrection of Jesus really are. For Christ, our Passover lamb, has been sacrificed"; this refers to the Passover requirement to have no yeast in the house and to the allegory of Jesus as the Paschal lamb. In the Catacombs of Rome, artists indirectly hinted at the resurrection by using images from the Old Testament such as the fiery furnace and Daniel in the Lion's den. Depictions prior to the 7th century generally showed secondary events such as the Myrrhbearers at the tomb of Jesus to convey the concept of the resurrection. An early symbol of the resurrection was the wreathed Chi Rho (Greek