Celts
Appearance

People considered Celts spoke a Celtic language. They occupied much of Europe before the time of the Roman Republic. There were Celts from Asia Minor to Ireland. Rome fought some fairly intense wars against the Celts in northern Italy and Gaul, usually calling them Gauls at the time.
Vercingetorix, the king of the Gauls, fought a losing war and surrendered to Julius Caesar. He was paraded through Rome and then strangled.
Present day there are majority Celtish areas in Brittany, Cornwall, Wales, Scotland, Ireland and the Isle of Man, as well as huge diasporas over Europe, North America and South America, and Australia.