Might there have been civilisations that existed here on Earth millions, perhaps billions of years ago that were simply wiped off the face of the planet and over time have literally been forgotten? What would happen to us if a cataclysmic event wiped out the human race? Over the thousands of years that it might take for life to start again, what would happen to our infrastructure? Our records? We may become just as forgotten and life may start again, entirely from scratch – and one day they would think their race were the first civilisation and before that there was nothing. Could this have happened many times in the past, and, if so, would world leaders have a vested interest in keeping these truths from the masses?