Gaulish is an extinct Celtic language spoken in parts of Continental Europe before and during the period of the Roman Empire. In the narrow sense, Gaulish was the language of the Celts of Gaul. In a wider sense, it also comprises varieties of Celtic that were spoken across much of central Europe ("Noric"), parts of the Balkans, and Anatolia ("Galatian"), which are thought to have been closely related. The more divergent Lepontic of Northern Italy has also sometimes been subsumed under Gaulish.
The re-assembled tablet of the Coligny calendar
The Curse tablet from L'Hospitalet-du-Larzac, Musée de Millau.
Gaulish cursive script on terra sigillata from La Graufesenque
The Celtic languages are a group of related languages descended from Proto-Celtic. They form a branch of the Indo-European language family. The term "Celtic" was first used to describe this language group by Edward Lhuyd in 1707, following Paul-Yves Pezron, who made the explicit link between the Celts described by classical writers and the Welsh and Breton languages.
The second of the four Botorrita plaques. The third plaque is the longest text discovered in any ancient Celtic language. However, this plaque is inscribed in Latin script.