Did you know ? Rivers Rhine and Thames joined together
at the sea
If you google "history of River Thames" or "History of Dogger Bank" or to the British Museum and look at European maps of the Ice Ages you find that the Thames and the Rhine were joining as the flowed in the pre-historic English Channel .
The story of the River Thames goes back to over 30 million years ago when the river was once a tributary of the River Rhine because Britain was not an island. During the Great Ice Age 10,000 years ago the Thames changed its course and pushed through the Chiltern Hills at a place we now call The Goring Gap.