Lessons In Iconography : The Chi Rho - Christ The Chi Rho may well be one of the most recognized of Christian symbols, and it represents Christ himself. This simple symbol is made up of a superimposed "X" (chi) and a "P" (rho), the first two letters of Christ's name in Greek. Used from the earliest days of Christianity on lamps, liturgical objects, sarcophagi, and in catacomb painting, and still in wide use today, the Chi Rho is linked to the conversion of the Roman empire in the fourth century. In 312 AD, on the eve of his battle against...