Naram-Sin's son was Bingani-sar-ali. A queen, Ellat-Gula, seems to have sat on the throne not many years later, and with her the dynasty may have come to an end. At any rate, the empire of Akkad is heard of no more. But it left behind it a profound and abiding impression on western Asia. Henceforward the culture and art of the west was Babylonian,—Semitic Babylonian, however, and no longer Sumerian Babylonian as in the days of Lugal-zaggi-si. Sargon was a patron of literature as well as a warrior. Standard works on astronomy and astrology and the science of omens were compiled for the great library he established at Akkad, where numerous scribes were kept constantly at work. Sumerian books were brought from the cities of the south and translated into Semitic; commentaries were written on the older literature of the country, and dictionaries and grammars compiled. It was now that that mixed language arose, or at least was admitted into the literary dialect, which made Babylonian so much resemble modern English. The lexicon was filled with Sumerian words which had put on a Semitic form, and Semitic lips expressed themselves in Sumerian idioms.

Art, too, reached a high perfection. The seal-cylinders of the reign of Sargon of Akkad represent the highest efforts of the gem-cutter's skill in ancient Babylonia, and a bas-relief of Naram-Sin, found at Diarbekr in northern Mesopotamia, while presenting close analogies to the Egyptian art of the Old Empire, is superior to anything of the kind as yet discovered in Babylonia of either an earlier or a later date. As in Egypt, so too in Babylonia, the sculpture of later times shows retrogression rather than advance. It is impossible not to believe that between the art of Egypt in the age of the Old Empire and that of Babylonia in the reigns of Sargon and Naram-Sin there was an intimate connection. The mines of the Sinaitic Peninsula were coveted by both countries.

Sumerian princes still continued to rule in Sumer or southern Babylonia, but after the era of Sargon their power grew less and less. A Second Sumerian dynasty, however, arose at Ur, and claimed sovereignty over the rest of Chaldæa. One of its kings, Ur-Bau, was a great builder and restorer of the temples, and under his son and successor Dungi (B.C. 2700), a high-priest of the name of Gudea governed Lagas, the monuments of which have given us an insight into the condition of the country in his age. His statues of hard diorite from the Peninsula of Sinai are now in the Louvre; one of them is that of the architect of his palace, with a copy of its plan upon his lap divided according to scale. Gudea, though owning allegiance to Dungi, carried on wars on his own behalf, and boasts of having conquered "Ansan of Elam." The materials for his numerous buildings were brought from far. Hewn stones were imported from the "land of the Amorites," limestone and alabaster from the Lebanon, gold-dust and acacia-wood from the desert to the south of Palestine, copper from northern Arabia, and various sorts of wood from the Armenian mountains. Other trees came from Dilmun in the Persian Gulf, from Gozan in Mesopotamia, and from Gubin, which is possibly Gebal. The bitumen was derived from "Madga in the mountains of the river Gurruda," in which some scholars have seen the name of the Jordan, and the naphtha springs of the vale of Siddim.

The library of Gudea has been found entire, with its 30,000 tablets or books arranged in order on its shelves, and filled with information which it will take years of labour to examine thoroughly. Not long after his death, the Second dynasty of Ur gave way to a Third, this time of Semitic origin. Its kings still claimed that sovereignty over Syria and Palestine which had been won by Sargon. One of them, Inê-Sin, carried his arms to the west, and married his daughters to the "high-priests" of Ansan in Elam, and of Mer'ash in northern Syria. His grandson, Gimil-Sin, marched to the ranges of the Lebanon and overran the land of Zamzali, which seems to be the Zamzummim of Scripture.

But with Gimil-Sin the strength of the dynasty seems to have come to an end. Babylonia was given over to the stranger, and a dynasty of kings from southern Arabia fixed its seat at Babylon. The language they spoke and the names they bore were common to Canaan and the south of Arabia, and sounded strangely in Babylonian ears. The founder of the dynasty was Sumu-abi, "Shem is my father," a name in which we cannot fail to recognise the Shem of the Old Testament. His descendants, however, had some difficulty in extending and maintaining their authority. The native princes of southern Babylonia resisted it, and the Elamites harried the country with fire and sword. In B.C. 2280 Kudur-Nankhundi, the Elamite king, sacked Erech and carried away the image of its goddess, and not long afterwards we find another Elamite king, Kudur-Laghghamar or Chedor-laomer, claiming lordship over the whole of Chaldsea. The western provinces of Babylonia shared in the fate of the sovereign power, and an Elamite prince, Kudur-Mabug by name, was made "Father" or "Governor of the land of the Amorites." His son Eri-Aku, the Arioch of Genesis, was given the title of king in southern Babylonia, with Larsa as his capital. Larsa had been taken by storm by the Elamite forces, and its native king, Sin-idinnam, driven out. He fled for refuge to the court of the King of Babylon, who still preserved a semblance of authority.

Khammurabi or Amraphel, the fifth successor of Sumu-abi, was now on the throne of Babylon. His long reign of fifty-five years marked an epoch in Babylonian history. At first he was the vassal of Kudur-Laghghamar, and along with his brother vassals, Eri-Aku of Larsa and Tudghula or Tidal of Kurdistan, had to serve in the campaigns of his suzerain lord in Canaan. But an opportunity came at last for revolt, it may be in consequence of the disaster which had befallen the army of the invaders in Syria at the hands of Abram and his Amorite allies. The war lasted long, and at the beginning went against the King of Babylon. Babylon itself was captured by the enemy, and its great temple laid in ruins. But soon afterwards the tide turned. Eri-Aku and his Elamite supporters were defeated in a decisive battle. Larsa was retaken, and Khammurabi ruled once more over an independent and united Babylonia. Sin-idinnam was restored to his principality, and we now possess several of the letters written to him by Khammurabi, in which his bravery is praised on "the day of Kudur-Laghghamar's defeat," and he is told to send back the images of certain Elamite goddesses to their original seats. They had doubtless been carried to Larsa when it fell into the hands of the Elamite invaders.

As soon as Babylonia was cleared of its enemies, Khammurabi set himself to the work of fortifying its cities, of restoring and building its temples and walls, and of clearing and digging canals. The great canal known as that of "the King," in the northern part of the country, was either made or re-excavated by him, and at Kilmad, near the modern Bagdad, a palace was erected. Art and learning were encouraged, and a literary revival took place which brought back the old glories of the age of Sargon. Once more new editions were made of standard works, poets arose to celebrate the deeds of the monarch, and books became multiplied. Among the literary products of the period was the great Chaldæan Epic in twelve books, recording the adventures of the hero Gilgames, and embodying the Chaldæan story of the Deluge.

The supremacy over western Asia passed to Khammurabi, along with sovereignty over Babylonia, and he assumed the title of "King of the land of the Amorites." So too did his great-grandson, Ammi-ditana. Two generations later, with Samas-ditana the First dynasty of Babylon came to an end. It had made Babylon the capital of the country—a position which it never subsequently lost. It had raised Bel-Merodach, the god of Babylon, to the head of the pantheon, and it had lasted for 304 years. It was followed by a Sumerian dynasty from the south, which governed the country for 368 years, but of which we know little more than the names of the kings composing it and the length of their several reigns.

It fell before the avalanche of an invasion from the mountains of Elam. The Kassites poured into the Babylonian plain, and Kassite kings ruled at Babylon for 576 years and a half. During their domination the map of western Asia underwent a change. The Kassite conquest destroyed the Babylonian empire; Canaan was lost to it for ever, and eventually became a province of Egypt. The high-priests of Assur, now Kaleh Sherghat, near the confluence of the Tigris and Lower Zab, made themselves independent and founded the kingdom of Assyria, which soon extended northward into the angle formed by the Tigris and Upper Zab, where the cities of Nineveh and Calah afterwards arose. The whole country had previously been included by the Babylonians in Gutium or Kurdistan.