34. The inscriptions which Hammurabi left are numerous, and afford us ample means of judging of his greatness as warrior, statesman and administrator. In his long reign of fifty-five years he had, indeed, time to achieve much, but what he did achieve _was_ much even for so long a reign. In what manner he drove out the foreigners we are not told, but so much is clear that the decisive victory was that which he gained over the Elamite king of Larsam. It was probably by expelling the hated race by turns from every district they occupied, that Hammurabi gathered the entire land into his own hands and was enabled to keep it together and weld it into one united empire, including both Accad and Shumir, with all their time-honored cities and sanctuaries, making his own ancestral city, Babylon, the head and capital of them all. This king was in every respect a great and wise ruler, for, after freeing and uniting the country, he was very careful of its good and watchful of its agricultural interests. Like all the other kings, he restored many temples and built several new ones. But he also devoted much energy to public works of a more generally useful kind. During the first part of his reign inundations seem to have been frequent and disastrous, possibly in consequence of the canals and waterworks having been neglected under the oppressive foreign rule. The inscriptions speak of a city having been destroyed "by a great flood," and mention "a great wall along the Tigris"--probably an embankment, as having been built by Hammurabi for protection against the river. But probably finding the remedy inadequate, he undertook and completed one of the greatest public works that have ever been carried out in any country: the excavation of a gigantic canal, which he called by his own name, but which was afterwards famous under that of "Royal Canal of Babylon." From this canal innumerable branches carried the fertilizing waters through the country. It was and remained the greatest work of the kind, and was, fifteen centuries later, the wonder of the foreigners who visited Babylon. Its constructor did not overrate the benefit he had conferred when he wrote in an inscription which can scarcely be called boastful: "I have caused to be dug the Nahr-Hammurabi, a benediction for the people of Shumir and Accad. I have directed the waters of its branches over the desert plains; I have caused them to run in the dry channels and thus given unfailing waters to the people.... I have changed desert plains into well-watered lands. I have given them fertility and plenty, and made them the abode of happiness."