English History/Prehistoric England
It is important to realise that you can't think of prehistoric England as England but loosely Britain. The early Britons were Celtic and spoke a 'p Celtic language' which can be seen in the word for five which would have started with p. The language had come and gone again and again throughout history. Currently we have a 'p Celtic' language, the p transformed into an f.
England and the rest of the British Isles were once connected to continental Europe. There are many theories to the separation of Britain from the rest of Europe such as rising sea levels, melting of the ice sheets and large earthquakes. Before the separation Neanderthals came from Europe and before that the African continent.
The Neanderthals had strongholds in western Europe including England which would be hardly recognisable.
Homo sapiens (who were all black at the time) arrived on the scene and migrated north and to the area. Whatever separated the isles had kept the eventually victorious homo sapiens in the area. The Britons constructed easily defensible hill forts and farmed around them. The walls were made of cow manure and branches. The early Britons made weapons of bone, wood and flint.