The Berlin State Museum houses a sixth-century bronze amulet from Asia Minor that has two fish turned toward one another on one side, and a Sator square in Greek characters in a checkerboard pattern on the other side. Written above the square is the word "ICHTHUS", which directly translates as a term for Christ; it is the earliest known Christian annotated Sator Square. An illustration in an early Byzantine bible gives the baptismal names of the three Magi as being: ATOR, SATOR, and PERATORAS. In Cappadocia, in the time of Constantine VII Porphyrogenitus (913–959), the shepherds of the Nativity of Jesus are named: SATOR, AREPON, and TENETON. The Sator square appears in diverse Christian communities, such as in Abyssinia where in the Ethiopian Book of the Dead, the individual nails in Christ's cross were called: Sador, Alador, Danet, Adera, Rodas. These are likely derived from even earlier Coptic Christian works that also ascribe the wounds of Christ and the nails of the cross with names that resemble the five words from the square. While there is little doubt amongst academics that Christians adopted the square, it was not clear that they had originated the symbol. Paternoster theory During 1924–1926, three people separately discovered, or rediscovered, that the square could be used to write the name of the Lord's Prayer, the "Paternoster", twice and intersecting in a cross-form (see image opposite). The remaining residual letters (two As and two Os) could be placed in the four quadrants of the cross and would represent the Alpha and Omega that are established in Christian symbolism. The positioning of the As and Os was further supported by the fact that the position of the Ts in the Sator square formed the points of a cross – there are obscure references in the Epistle of Barnabas to T being a symbol of the cross – and that the As and Os also lay in the four quadrants of this cross. At the time of this discovery, the earliest known Sator square was from the fourth century, further supporting the dating of the Christian symbolism inherent in the Paternoster theory. Academics considered the Christian origins of the square to be largely resolved. With the subsequent discovery of Sator squares at Pompeii, dating pre-79 A.D, the Paternoster theory began to lose support, even amongst notable supporters such as French historian Guillaume de Jerphanion. Jerphanion noted: that (1)