LONDON, ENGLAND—CT scans and the use of infra-red technology on the naturally mummified remains of a woman who lived in in a Christian community in the Sudan 1,300 years ago have revealed a tattoo on her inner thigh. The tattoo is a symbol of the Archangel Michael, assembled from ancient Greek letters. “She is the first evidence of a tattoo from the period. This is a very rare find,” Daniel Antoin, curator of physical anthropology at the British Museum, told The Telegraph. The woman’s remains are part of a special exhibition of eight mummies and what technology has revealed about their lives.