Water management extends far into prehistory. Indeed, the ‘domestication of water’ may have been as important as the domestication of plants and animals for the Neolithic revolution that provided the economic and social foundations for ancient civilizations. Waterways were critical for their development, providing means of irrigation, the transport of materials and, in some cases, armies. Indeed, water management was of such importance that this emerges as a key source of power within the Ancient World, one evident from the immense symbolism that surrounds the control of water. This presentation will illustrate and explore these issues, visiting several ancients civilizations where canals and water management in general was of particular significance, including Ancient Mesopotamia, China and Mayan civilisations.