Cornwall county has been administered since 2009 by the unitary authority, Cornwall Council. The ceremonial county of Cornwall also includes the Isles of Scilly, which are administered separately. The administrative centre of Cornwall, and its only city, is Truro. Cornwall is the homeland of the Cornish people and the cultural and ethnic origin of the Cornish diaspora. It retains a distinct cultural identity that reflects its unique history, and is recognised as one of the Celtic nations with a rich cultural heritage. It was formerly a Brythonic kingdom and subsequently a royal duchy. The Cornish nationalist movement contests the present constitutional
History of Cornwall open to settlement as the vegetation required little in the way of clearance: they were perhaps first occupied in Neolithic times (Palaeolithic remains are almost non-existent in Cornwall). Many megaliths of this period exist in Cornwall and prehistoric remains in general are more numerous in Cornwall than in any other English county except Wiltshire. The remains are of various kinds and include menhirs, barrows and hut circles. Cornwall and neighbouring Devon had large reserves of tin, which was mined extensively during the Bronze Age by people associated with the Beaker culture. Tin is necessary to make bronze from copper, and