Is there any way in which the separate Anglo-Saxon kingdoms established after their invasion of the British Isles in 450- ie Mercia, Wessex, Sussex, Essex, Northumbria, Kent- could've continued to exist as distinct political entities instead of gradually merging into the nation England by the 8th-9th C AD ? Could the continued existence of separate Anglo-Saxon kingdoms have facilitated the creation of a federal England to incorporate and cater for these separate entities ?