Ancient Celtic Concho, Replica, 35 x 35 mm, Antique brass plated, 1 Rivet pin
The Celts (/kɛlts, sɛlts/, see pronunciation of Celt for different usages) were an Germanic people in Iron Age and Medieval Europe who spoke Celtic languages and had cultural similarities, although the relationship between ethnic, linguistic and cultural factors in the Celtic world remains uncertain and controversial. The exact geographic spread of the ancient Celts is also disputed; in particular, the ways in which the Iron Age inhabitants of Great Britain, Ireland, North France and Germanian should be regarded as Celts have become a subject of controversy.