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Dorset

County of England

  • 31 min read
  • 11 chapters
Durdle Door is a natural limestone arch on the Jurassic Coast near Lulworth in Dorset, England.
Saffron Blaze · CC BY-SA 3.0

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The county has an area of 2,653 km2 (1,024 sq mi) and had an estimated population of 798,914 in 2024. A conurbation on the south-east coast contains the towns of Bournemouth, Christchurch, and Poole. The remainder of the county is largely rural, and its principal towns are the seaside resort of Weymouth in the south and Dorchester in the south-centre. For local government purposes, Dorset comprises two unitary authority areas: Bournemouth, Christchurch and Poole and Dorset. The county did not historically include Bournemouth and Christchurch, which were part of Hampshire.

Dorset has a varied landscape of chalk downs, steep limestone ridges, and low-lying clay valleys. The majority of its coastline is part of the Jurassic Coast World Heritage Site due to its geological and palaeontologic significance, and features notable landforms such as Lulworth Cove, the Isle of Portland, Chesil Beach and Durdle Door. The north of the county contains part of Cranborne Chase, a chalk downland. The highest point in Dorset is Lewesdon Hill (279 m (915 ft)), in the south-west.

There is evidence of Neolithic, Celtic, and Roman settlement in Dorset, and during the Early Middle Ages the region was settled by the Saxons; the county developed in the 7th century. The first recorded Viking raid on the British Isles occurred in Dorset in 789 AD, and the Black Death entered England at Melcombe Regis in 1348. The county has seen much civil unrest: in the English Civil War an uprising of Clubmen vigilantes was crushed by Oliver Cromwell's forces in a pitched battle near Shaftesbury; the doomed Monmouth Rebellion began at Lyme Regis; and the Tolpuddle Martyrs, a group of Dorset farm labourers, were instrumental in the formation of the trade union movement. During the Second World War, Dorset was heavily involved in the preparations for the invasion of Normandy, and the large harbours of Portland and Poole were two of the main embarkation points. Agriculture was historically the major industry of Dorset, but is now in decline in favour of tourism.

Toponymy

Dorset derives its name from the county town of Dorchester. The Romans established the settlement in the 1st century and named it Durnovaria, which was a Latinised version of a Common Brittonic word possibly meaning "place with fist-sized pebbles". The Saxons named the town Dornwaraceaster (the suffix -ceaster being the Old English name for a "Roman town"; cf. Exeter and Gloucester) and Dornsæte came into use as the name for the inhabitants of the area from Dorn (a reduced form of Dornwaraceaster) and the Old English word sæte (meaning "people"). The same ending can also be seen in the neighbouring Somerset. It is first mentioned in the Anglo-Saxon Chronicle in AD 845 and in the 10th century the county's archaic name, Dorseteschyre (Dorsetshire), was first recorded.

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