Writing history is not an easy or simple task. Even historians normally approach it with caution and care to put the events in the correct perspective in time and setting. Trying to read history of a particular historical event and drawing the right conclusions is, however, an even more difficult work. Different motives may lay behind writing the history of a particular event which necessitates looking into it from different angles and trying to reach an unbiased conclusion. When I decided to write on the history of “Irrigation and Agriculture of the Land between the two Rivers” as an engineer, I thought that the problems involved are insurmountable, and maybe I should leave it to others. The challenge was very strong, and finally I decided...