5/6. Ignoring the power of water can, even today, be a perilous act, says Dr lain Stewart. Thriving ancient civilisations learnt how best to exploit one of man's most crucial commodities, but whether they controlled water or vice versa depended on the rocks beneath their feet. From the catastrophic flooding of Stone Age hunting grounds around the Black Sea to the fall of the Roman Empire, water played a decisive role. Producer Nigel Miller ; Series producer Jeremy Phillips
First shown on BBC4