Rivers have been very useful to men in all parts ofthe earth since very early times. They provide water to slake the thirst of men, to fertilize their lands and to provide a means of communication for the goods that they transport from place to place. Early civilization began on the banks of the great rivers of the world, such as the Nile and the Indus. These rivers provided the water, the people on their banks needed for all their purposes. As people in those early days did not have the transport facilities that we have today . They had to live close to the rivers to transport their goods to places along the rivers and to draw the water that they needed. Rivers not only provided water for their domestic needs and agricultural purposes but also enabled the people to move along their banks.