Civilization One: The World Is Not as You Thought It Was

This is the amazing story of how a quest to try to crack the mystery of the Megalithic Yard - an ancient unit of linear measurement - led to the discovery of compelling evidence pointing to the existence of an unknown, highly advanced culture which was the precursor to the earliest known civilizations such as the Sumerians and the Egyptians. There must have been a Civilization One. Knight and Butler reveal the secrets of an extraordinary integrated measuring system which might have been lost …