The Celts were a ferocious tribal people with common ancestry whose culture spread from modern-day Scotland to the southern tip of Iberia, and across the Alps into the Balkans. Famous for intricate iron-working, rich and verbal lore, courage in combat, and simplicity, the Celts were among the most vibrant and powerful civilizations of the first millenium B.C. The ultimate origin of the Celtic peoples is indeterminate, though the people of the Urnfield culture seem to be the most direct connecti