The KI-RO sign was used as secret sign of recognition between Christians during Roman persecution times, and it was used as a trekking sign to lead the Catholics to Mass in the Catacombs. In succeeding centuries it has been used as a Christogram, representing the name of Christ, in Church decoration, on Altar frontals, on vestments, in Missals and prayer books.
In January, 1955, the KI-RO sign was found scratched on the base of a small clay lamp discovered during the excavation of the Roma town of Caerleon, Monmouthshire. It is the earliest evidence of Christianity, under the Romans, in Wales. It almost certainly points to a period of persecution some time after the year 200 A.D. The lamp is now in the National Museum of Wales. |
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