Old Father Thames
London is one of the major cities of the world today, but it would not have existed without the River Thames. The river has acted as a source of fresh water and food, an artery of communication and transportation, and a physical and psychological boundary. Part of the river, called the Tideway, is tidal and this forms a natural harbor that connects London to the English Channel. Since pre-Roman times the river has been the major communication and trade route between Britain and the rest of the world. The River Thames has truly defined the character and prosperity of London for over well over 2,000 years.