Celts are numerous different individuals and countries who settled in a sizable part of europe in regards to the Iberian Peninsula and Britannia. They would an homogeneous faith, but constantly was in fact politically split. The greater costly understood cultural team would be the Gauls. Fierce and hard-fighting, in 386 B.C. the Senones Gauls led by Brennus spot Rome under siege and occupied it. They certainly were afterwards subjugated by the Romans.