"...Gaulish is the name given to the Celtic language that was spoken in Gaul before the Vulgar Latin of the late Roman Empire became dominant in Roman Gaul. The language is known from several hundred inscriptions on stone, on ceramic vessels and other artifacts, and on coins, and occasionally on metal (lead, and on one occasion zinc). They are found in the entire area of Roman Gaul, i.e., mostly in the area of the west of France, as well as parts of Switzerland, Italy, Germany and Belgium..."
Source: http://en.wikipedia.org/wiki/Gaulish_language
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