Digitally enhanced images of the slate are helping to isolate inscriptions and illuminate fine details on the slate—the first with extensive inscriptions discovered at any early American colonial site, said William Kelso, director of research and interpretation at the 17th-century Historic Jamestowne site (Jamestown map).

(Explore an interactive guide to colonial Jamestown.)

The enhancements have helped researchers identify a 16th-century writing style used on the slate and discern new symbols, researchers announced last week. The characters may be from an obscure Algonquian Indian alphabet created by an English scientist to help explorers pronounce the language spoken by the Virginia Indians.

"Just like finding the Rosetta