Belief that, in the person of JesusJesus (Greek form of Hebrew 'Joshua' meaning 'Yahweh [God] is salvation') Also given the title Christ, meaning 'anointed one' or Messiah. His life is recorded mainly in the Four Gospels although he is also mentioned by the Jewish historian Josephus (c. 37-c.100) and the Roman historian Tacitus (c.110). Christ, God became a human being and willingly offered himself to die on the crossCross Instrument of torture and execution used in the Roman Empire. The means by which Christ was put to death and therefore the primary symbol of the Christian faith, representing the means by which he is believed to have won forgiveness for humankind. The Cross may be represented as Tau-shaped (like a capital T); with a shorter cross-bar or with a circle enclosing the upper intersection (Celtic). In medieval art a cross made of living branches signifies the Tree of Life. St Helena, mother of the Emperor Constantine, is said to have discovered the True Cross (i.e. the Cross in Jerusalem on which Christ died) in 326. in order to save men and women from their sins.