There was now a proliferation of relics of the wood of the Cross. Earlier the usual Christian visual symbol for Christ had been a fish, since the Greek word for ‘fish’, ichthys, could be turned into an acrostic for the initial letters of a Greek phrase, ‘Jesus Christ, Son of God, Saviour’, or similar devotional variants. Now the fish was far outclassed not only by the new imperial Chi-Rho monogram referring to the same word, but also by the Cross.
