Cornwall (; Cornish: Kernow [ˈkɛrnɔʊ]) is a ceremonial county in South West England. It is recognised as one of the Celtic nations and is the homeland of the Cornish people. The county is bordered by the Atlantic Ocean to the north and west, Devon to the east, and the English Channel to the south. The largest settlement is Falmouth, and the county town is Truro.
The county is rural, with an area of 3,562 square kilometres (1,375 sq mi) and population of 568,210. The largest settlements are Falmouth (23,061), Newquay (20,342), St Austell (19,958), and Truro (18,766). Most of Cornwall forms a single unitary authority area, and the Isles of Scilly have a unique local authority. The Cornish nationalist movement disputes the constitutional status of Cornwall and seeks greater autonomy within the United Kingdom.
Cornwall is the westernmost part of the South West Peninsula. Its coastline is characterised by steep cliffs and, to the south, several rias, including those at the mouths of the rivers Fal and Fowey. It includes the southernmost point on Great Britain, Lizard Point, and forms a large part of the Cornwall Area of Outstanding Natural Beauty. The AONB also includes Bodmin Moor, an upland outcrop of the Cornubian batholith granite formation. The county contains many short rivers; the longest is the Tamar, which forms the border with Devon.
Cornwall had a minor Roman presence, and later formed part of the Brittonic kingdom of Dumnonia. From the 7th century, the Britons in the South West increasingly came into conflict with the expanding Anglo-Saxon kingdom of Wessex, eventually being pushed west of the Tamar; by the Norman Conquest Cornwall was administered as part of England, though it retained its own culture. The remainder of the Middle Ages and Early Modern Period were relatively settled, with Cornwall developing its tin mining industry and becoming a duchy in 1337. During the Industrial Revolution, the tin and copper mines were expanded and then declined, with china clay extraction becoming a major industry. Railways were built, leading to a growth of tourism in the 20th century. The Cornish language became extinct as a living community language at the end of the 18th century, but is now being revived.
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