Note B — THE FIRST CHRISTIAN EMPEROR.
Reading edition
X and P, the first two letters of the name of Christ, so written upon one another as to make the form of the cross: (i.e. Christos—Alpha and Omega, the beginning and the end), and similar forms, of which Münter (Sinnbilder der Alten Christen, p. 36 sqq.) has collected from ancient coins, vessels, and tombstones more than twenty. The monogram, as well as the sign of the cross, was in use among the Christians long before Constantine, probably as early as the Antonines and Hadrian. Yea, the standards and trophies of victory generally had the appearance of a cross, as Minucius Felix, Tertullian, Justin, and other apologists of the second century told the heathens. According to Killen (Ancient Church, p. 317, note), who quotes Aringhus (Roma Subterranea, II. p. 567) as his authority, the famous monogram (of course in a different sense) is found even before Christ on coins of the Ptolemies. The only thing new, therefore, was the union of this symbol in its Christian sense and application with the Roman military standard.
