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Flag of Cornwall Porth Kernow a'gas dynnargh!
Welcome to the Cornwall Portal!
Location of Cornwall

Cornwall (/ˈkɔːrnwɔːl, -wəl/; Cornish: Kernow [ˈkɛrnɔʊ]) is a historic county and ceremonial county in South West England. It is recognised as one of the Celtic nations, and is the homeland of the Cornish people. Cornwall is bordered to the north and west by the Atlantic Ocean, to the south by the English Channel, and to the east by the county of Devon, with the River Tamar forming the border between them. Cornwall forms the westernmost part of the South West Peninsula of the island of Great Britain. The southwesternmost point is Land's End and the southernmost Lizard Point. Cornwall has a population of 568,210 and an area of 3,563 km2 (1,376 sq mi). The 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 is Truro, its only city.

Cornwall was formerly a Brythonic kingdom and subsequently a royal duchy. It is the cultural and ethnic origin of the Cornish diaspora. The Cornish nationalist movement contests the present constitutional status of Cornwall and seeks greater autonomy within the United Kingdom in the form of a devolved legislative Cornish Assembly with powers similar to those in Wales, Scotland and Northern Ireland. In 2014, Cornish people were granted minority status under the European Framework Convention for the Protection of National Minorities, giving them recognition as a distinct ethnic group.

Recent discoveries of Roman remains in Cornwall indicate a greater Roman presence there than once thought. After the collapse of the Roman Empire, Cornwall (along with Devon, parts of Dorset and Somerset, and the Scilly Isles) was a part of the Brittonic kingdom of Dumnonia, ruled by chieftains of the Cornovii who may have included figures regarded as semi-historical or legendary, such as King Mark of Cornwall and King Arthur, evidenced by folklore traditions derived from the Historia Regum Britanniae. The Cornovii division of the Dumnonii tribe were separated from their fellow Brythons of Wales after the Battle of Deorham in 577 AD, and often came into conflict with the expanding English kingdom of Wessex. The regions of Dumnonia outside of Cornwall (and Dartmoor) had been annexed by the English by 838 AD. King Athelstan in 936 AD set the boundary between the English and Cornish at the high water mark of the eastern bank of the River Tamar. From the Early Middle Ages, language and culture were shared by Brythons trading across both sides of the Channel, resulting in the corresponding high medieval Breton kingdoms of Domnonée and Cornouaille and the Celtic Christianity common to both areas.

Cornwall is noted for its geology and coastal scenery. A large part of the Cornubian batholith is within Cornwall. The north coast has many cliffs where exposed geological formations are studied. The area is noted for its wild moorland landscapes, its long and varied coastline, its attractive villages, its many place-names derived from the Cornish language, and its very mild climate. Extensive stretches of Cornwall's coastline, and Bodmin Moor, are protected as an Area of Outstanding Natural Beauty. (Full article...)

Selected article

St Tetha's in St Teath
Tetha (Cornish: Tedha; Welsh: Tedda), also known as Teath (/tɛθ/), Tecla, and by a variety of other names, was a 5th-century virgin and saint in Wales and Cornwall. She is associated with the parish church of St Teath in Cornwall. Baring-Gould gives her feast day as 27 October, but this has been called a mistaken conflation with Saint Ia. In 1878, it was held on the movable feast of Whit Tuesday. Other sources place it on 1 May, 6 September, and (mistakenly) 15 January. It is no longer observed by either the Anglican or Catholic church in Wales. (Full article...)

Selected biography

John Arnold.jpg

John Arnold (1736 – 11 August 1799) was an English watchmaker and inventor.

John Arnold was the first to design a watch that was both practical and accurate, and also brought the term "chronometer" into use in its modern sense, meaning a precision timekeeper. His technical advances enabled the quantity production of marine chronometers for use on board ships from around 1782. The basic design of these has remained, with a few modifications unchanged until the late twentieth century. With regard to his legacy, one can say that both he and Abraham-Louis Breguet largely invented the modern mechanical watch. Certainly one of his most important inventions, the overcoil balance spring is still to be found in most mechanical wristwatches to this day.

It was from around 1770 that Arnold developed the portable precision timekeeper, almost from the point where John Harrison ended his work in this field. But, compared to Harrison's complicated and expensive watch, Arnold's basic design was simple whilst consistently accurate and mechanically reliable. Importantly, the relatively simple and conventional design of his movement facilitated its production in quantity at a reasonable price whilst also enabling easier maintenance and adjustment.

Three elements were necessary for this achievement:

  • A detached escapement, which gave minimal interference with the vibrating balance and balance spring
  • A balance design that enabled compensation for the effect of temperature on the balance spring
  • A method for adjusting the balance spring, so that the balance oscillates in equal time periods, even through different degrees of balance arc (Full article...)
List of selected biographies


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Selected quote

The whole Countrie of Britain ...is divided into iiii partes; whereof the one is inhabited of Englishmen, the other of Scottes, the third of Wallshemen, the fowerthe of Cornishe people, which all differ emonge them selves, either in tongue, ...in manners, or ells in lawes and ordinaunces
Polydore Vergil, Italian scholar writing in the Anglica Historia in 1535

Selected picture

St Michael's Mount

Photo credit: Jim Champion

The tidal island of St Michael's Mount is the historic Cornish counterpart of Mont Saint-Michel and is now visitor attraction controlled by the National Trust.

General images

The following are images from various Cornwall-related articles on Wikipedia.

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  • Create Articles for listed buildings in Cornwall.
  • Create Articles for conservation areas in Cornwall.
  • Create Articles for public parks in Cornwall.
  • Create Articles for historic sites, particularly hill-forts.

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  • Create Articles for notable Cornish politicians.
  • Expand Alfred Aaron de Pass and add more info on him to the institutions he donated art and money to in Cornwall (RIC, Falmouth Gallery etc).
  • Create Articles for notable Cornish artists.


  • Create Articles for local groups and charities.
  • Create Articles for notable art galleries.

History, language, culture and art


  • Illustrate the new Russian article Корнцы if you can work with Russian Cyrillic script

Associated Wikimedia

The following Wikimedia Foundation sister projects provide more on this subject:

Wikipedia in Cornish

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