Writings on the Wall

New research has found that the ancestors of modern Scottish people left rock engravings that contain a written language from the Iron Age. The stone carvings were thought to be rock art or related to heraldry, but the study found that the pictures represented the lost language of a group of Celtic tribes known as the Picts. The researchers “used a mathematical process known as Shannon entropy to study the order, direction, randomness and other characteristics of each engraving.”