Other county names are even older. Perhaps the oldest is that of [[Orkney]], the county of Scotland co-extensive with the Orkney Islands archipelago, whose name was recorded as ''Orcas'' in c. 300 BC by the [[Ancient Greece|Ancient Greek]] explorer Pytheas. The county name [[Kent]] dates back at least as far as 51 BC, being recorded then by [[Julius Caesar]] as ''Cantium''. Some, such as [[Essex]] and [[Northumberland]], reference Anglo-Saxon territorial divisions, the former continuing the name of the East Saxon kingdom (527–825 AD), and the latter ultimately originates with the Anglian kingdom [[Northumbria]] (651–954 AD), which at its territorial peak (700 AD) covered most of northern England and southern Scotland. | Other county names are even older. Perhaps the oldest is that of [[Orkney]], the county of Scotland co-extensive with the Orkney Islands archipelago, whose name was recorded as ''Orcas'' in c. 300 BC by the [[Ancient Greece|Ancient Greek]] explorer Pytheas. The county name [[Kent]] dates back at least as far as 51 BC, being recorded then by [[Julius Caesar]] as ''Cantium''. Some, such as [[Essex]] and [[Northumberland]], reference Anglo-Saxon territorial divisions, the former continuing the name of the East Saxon kingdom (527–825 AD), and the latter ultimately originates with the Anglian kingdom [[Northumbria]] (651–954 AD), which at its territorial peak (700 AD) covered most of northern England and southern Scotland. |