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East Sussex

County of England

  • 14 min read
  • 11 chapters
Brighton royal pavilion_Qmin
Qmin · CC BY-SA 3.0

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Through Chalk

The county has an area of 1,792 km2 (692 sq mi) and had an estimated population of 844,752 in 2024. The largest settlements are on the coast, and include Brighton and Hove in the south-west, Eastbourne in the south, and Hastings in the south-east. Away from the coast the county is largely rural, and its settlements include Crowborough in the north, Hailsham in the south-centre, and Lewes in the west. For local government purposes East Sussex comprises a non-metropolitan county, with five districts, and the unitary authority of Brighton and Hove. East Sussex and West Sussex historically formed a single county, Sussex.

The north east of East Sussex is part of the Weald, a sandstone anticline that was once an extensive woodland. The highest point in this area is Crowborough Hill (242 m (794 ft)), part of the High Weald uplands. The south west of the county is part of the South Downs, a rolling chalk escarpment that stretches west into West Sussex and Hampshire. Ditchling Beacon (248 m (814 ft)) is the highest point. Where the downs reach the sea, they form high cliffs such as the Seven Sisters, where eroded dry valleys create an undulating skyline. The county does not contain large rivers, but its largest are the Rother, which forms part of the boundary with Kent, the Cuckmere, and the Ouse, which rises in West Sussex and flows through Lewes before reaching the English Channel at Newhaven.

History

East Sussex is part of the historic county of Sussex, which has its roots in the ancient kingdom of the South Saxons, who established themselves there in the 5th century AD, after the departure of the Romans. Archaeological remains are plentiful, especially in the upland areas. The area's position on the coast has also meant that there were many invaders, including the Romans and later the Normans, following the defeat of the English army by William the Conqueror at the Battle of Hastings in 1066. Earlier industries included fishing, iron-making, and the wool trade, all of which have declined or been lost completely.

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