Among the earliest known types is the crux ansata, vulgarly called ’the key of the Nile,’ because of its being found sculptured or otherwise represented so frequently upon Egyptian and Coptic monuments.  It has, however, a very much older and more sacred signification than this.  It was the symbol of symbols, the mystical Tau, ‘the bidden wisdom,’ not only of the ancient Egyptians but also of the Chaldeans, Phoenicians, Mexicans, Peruvians, and of every other ancient people commemorated in history, in either hemisphere, and is formed very similarly to our letter T, with a roundlet, or oval, placed immediately above it.  Thus it was figured on the gigantic emerald or glass statue of Serapis, which was transported (293 B.C.) by order of Ptolemy Soter from Sinope, on the southern shores of the Black Sea, re-erected within that famous labyrinth which encompassed the banks of Lake Moeris, and destroyed by the victorious army of Theodosius (A.D. 389), despite the earnest entreaties of the Egyptian priesthood to spare it, because it was the emblem of their god and of ‘the life to come.’  Sometimes, as may be seen on the breast of an Egyptian mummy in the museum of the London University, the simple T only is planted on the frustum of a cone; and sometimes it is represented as springing from a heart; in the first instance signifying goodness; in the second, hope or expectation of reward.  As in the oldest temples and catacombs of Egypt, so this type likewise abounds in the ruined cities of Mexico and Central America, graven as well upon the most ancient cyclopean and polygonal walls as upon the more modern and perfect examples of masonry; and is displayed in an equally conspicuous manner upon the breasts of innumerable bronze statuettes which have been recently disinterred from the cemetery of Juigalpa (of unknown antiquity) in Nicaragua.”

When the Spanish missionaries first set foot upon the soil of America, in the fifteenth century, they were amazed to find the Cross was as devoutly worshipped by the red Indians as by themselves, and were in doubt whether to ascribe the fact to the pious labors of St. Thomas or to the cunning device of the Evil One.  The hallowed symbol challenged their attention on every hand and in almost every variety of form.  It appeared on the bass-reliefs of ruined and deserted as well as on those of inhabited palaces, and was the most conspicuous ornament in the great temple of Gozumel, off the coast of Yucatan.  According to the particular locality, and the purpose which it served, it was formed of various materials—­of marble and gypsum in the open spaces of cities and by the way-side; of wood in the teocallis or chapels on pyramidal summits and in subterranean sanctuaries; and of emerald or jasper in the palaces of kings and nobles.

When we ask the question how it comes that the sign of the Cross has thus been reverenced from the highest antiquity by the races of the Old and New Worlds, we learn that it is a reminiscence of the Garden of Eden, in other words, of Atlantis.