East Sussex and West Sussex have been divided since the 12the century.
In more recent history the county councils were separated in 1888.
West Sussex is in south-east England. West Sussex has been an official county since 1889 and has two major towns Worthing and Crawley. West Sussex' county town is the small Cathedral City of Chichester and West Sussex has London's second airport - Gatwick
Lewes is the county town of East Sussex.
Sussex is a county in South East England. London is the capital city of England.
East Sussex.
There are two counties called Sussex. East Sussex, whose county town is Lewes and West Sussex, whose county town is Chichester.
East Sussex is a county in southeast England. It's administrative town is Lewes. Other towns in East Sussex include Brighton, Eastbourne and Hastings (where the battle was fought).
Rutland
Pevensey Haven is a river in East Sussex County, England. Pangham Rife is a river in Sussex County, England. River Plym is a river in Devon County, England.
I have a list of thirty, but am not sure that the list is complete.
East Sussex
East Sussex
It's difficult to say - either East Sussex or Kent.