Iron Age - 400 BC
Further sophistication and development took place in the Iron Age. Remarkable clusters of prehistoric sites are associated with the peat on the shore at Goldcliff and Redwick in Gwent. Rectangular wooden buildings found there are unique to the British late Bronze Age and Iron Age. Animal hoof prints occur around the buildings, suggesting the seasonal grazing of livestock. A small bone assemblage found here has pointed to the raising of mainly cattle, but also the presence of horses and dogs, and access to sheep / goat meat. Human skulls have also been recovered.
Later in the Iron Age the well known settlements of Glastonbury and Meare in Somerset rise to prominence.