section_path: History by region/Europe/Nomads and Iron Age peoples
section_name: Nomads and Iron Age peoples
paragraph_text: Nomads and Iron Age peoples
  
  The Celts were a diverse group of tribal societies in Iron Age Europe. Proto-Celtic culture formed in the Early Iron Age in Central Europe (Hallstatt period, named for the site in present-day Austria). By the later Iron Age (La Tène period), Celts had expanded over wide range of lands: as far west as Ireland and the Iberian Peninsula, as far east as Galatia (central Anatolia), and as far north as Scotland. By the early centuries AD, following the expansion of the Roman Empire and the Great Migrations of Germanic peoples, Celtic culture had become restricted to the British Isles.
  
  The Huns were a nomadic people who formed a large state in Eastern Europe by about AD 400, and under their leader Attila, they fought against both sections of the Roman Empire. However, after Attila's death, the state fell apart and the Huns' influence in history disappeared. The Hun-Xiongnu connection is controversial at best and is often disputed but is also not completely discredited.
  
  Migration of Germanic peoples to Britain from what is now northern Germany and southern Scandinavia is attested from the 5th century. Groups of Goths migrated into western Europe, with the Ostrogoths eventually settling in Italy before being conquered by the Lombards. A related people, the Visigoths, settled in Spain, founding a kingdom that lasted until it was conquered by Islamic rulers in the AD 700s.