Christians believe Jesus Christ is the son of God who was sent to Earth to forgive all men of their sin. His birth (in Bethlehem) is the reason Christmas is celebrated. Throughout his earthly life, he gained thousands of followers and performed several miracles. He was crucified on the cross at Golgotha, the Place of the Skull. Three days later he arose from the dead and ascended into Heaven. His crucifixion was the ultimate sacrifice for forgiveness of man's sin.