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Iron tools and weapons begin replacing bronze across Europe. -
Celtic culture begins to form in central Europe (Hallstatt culture) -
Celts spread into France, Britain, Ireland, and parts of Spain. -
Peak of Celtic art, religion, and craftsmanship. Famous for beautiful knotwork and weapons. -
Druids become central figures in religion, medicine, and law. -
Romans begin attacking Celtic tribes in Britain. Druids resist. -
Celtic kingdoms start to fade as Roman roads, forts, and towns are built.