East Sussex is a ceremonial county in South East England. It is bordered by Kent to the northeast, West Sussex to the west, Surrey to the northwest, and the English Channel to the south. The largest settlement is the city of Brighton and Hove, and the county town is Lewes. The county has an area of 1,792 km² (692 sq mi) and a population of 822,947. The latter is largely concentrated along the coast, where the largest settlements are located: Brighton and Hove (277,105), Eastbourne (99,180), and Hastings (91,490). The centre and north of the county are largely rural, and the largest settlement is Crowborough (21,990). 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 northeast 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.

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. (Full article...)

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