In medieval Irish and Scottish legend, Goídel Glas (Latinised as Gaithelus) is the creator of the Goidelic languages and eponymous ancestor of the Gaels. The tradition can be traced to the 11th-century Lebor Gabála Érenn. A Scottish variant is recorded by John of Fordun (d. 1384). Lebor Gabála Érenn The narrative in the Lebor Gabála Érenn is a legendary account of the origin of the Gaels as the descendants of the Scythian prince Fénius Farsaid, one of seventy-two chieftains who built the Tower of Babel. In the tale, Goídel Glas is the son of Nel (son of Fénius) and Scota (daughter of a Pharaoh of Egypt). Goídel Glas is credited with creating the Goidelic language from the original seventy-two languages that arose at the time of the confusion of tongues. His descendants, the Goidels or Gaels, undergo a series of trials and tribulations resembling those of the Israelites in the Old Testament. They flourish in Egypt at the time of Moses and leave during the Exodus; they wander the world for 440 years before eventually settling in the Iberian Peninsula. There, Goídel's descendant Breogán founds a city called Brigantia, and builds a tower from the top of which his son Íth glimpses Ireland. Brigantia likely refers to Corunna in Galicia (then known as Brigantium), whilst Breogán's tower is likely based on the Tower of Hercules, which was built at Corunna by the Romans. An anecdote in the Lebor Gabála tells how Gaidel Glas, son of Nel (or Niul), was cured of a snakebite when Moses made fervent prayer and placed his staff on Gaidel's wound. An inserted verse in an earlier passage says of Gaidel: "green were his arms and his vesture". Michael O'Clery's redaction of the Lebor Gabála adds that the snakebite left a green ring on Gaidel from which he earned his nickname 'Glas' ("the green"). Geoffrey Keating repeats this tale, although he prefaces it with another derivation of the nickname from the word for 'lock' (). Modern scholars believe that the tale is mostly an invention of medieval Irish Christian writers, who sought to link the Irish to people and events from the Old Testament. The names Goidel Glas, Scota and Fenius come from the names of the Gaels themselves, not the other way round. Historia Brittonum The earliest surviving version of the story is found in the 9th century Historia Brittonum. It describes an unnamed Scythian