Ghostly Faces and Invisible Verse Found in Medieval Text

A page (49r) of "The Black Book of Carmarthen" showing the stylized drawing of a dog and text in the margins.
A page (49r) of "The Black Book of Carmarthen" showing the stylized drawing of a dog and text in the margins.
(Image credit: National Library of Wales)

Ghostly faces and lines of verse previously invisible to the naked eye have been uncovered in the oldest surviving medieval manuscript written entirely in Welsh.

"The Black Book of Carmarthen," dating to 1250, contains texts from the ninth through 12th centuries, including some of the earliest references to Arthur and Merlin.

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Managing editor, Scientific American

Jeanna Bryner is managing editor of Scientific American. Previously she was editor in chief of Live Science and, prior to that, an editor at Scholastic's Science World magazine. Bryner has an English degree from Salisbury University, a master's degree in biogeochemistry and environmental sciences from the University of Maryland and a graduate science journalism degree from New York University. She has worked as a biologist in Florida, where she monitored wetlands and did field surveys for endangered species, including the gorgeous Florida Scrub Jay. She also received an ocean sciences journalism fellowship from the Woods Hole Oceanographic Institution. She is a firm believer that science is for everyone and that just about everything can be viewed through the lens of science.