The rise of Babylon inaugurated a new era in the history of Western Asia. Coincidentally the political power of the Sumerians came to an end. It had been paralysed by the Elamites, who, towards the close of the Dynasty of Isin, successfully overran the southern district and endeavoured to extend their sway over the whole valley. Two Elamite kings, Warad-Sin and his brother Rim-Sin, struggled with the rulers of Babylon for supremacy, and for a time it appeared as if the intruders from the East were to establish themselves permanently as a military aristocracy over Sumer and Akkad. But the Semites were strongly reinforced by new settlers of the same blended stock who swarmed from the land of the Amorites. Once again Arabia was pouring into Syria vast hordes of its surplus population, with the result that ethnic disturbances were constant and widespread. This migration is termed the Canaanitic or Amorite: it flowed into Mesopotamia and across Assyria, while it supplied the "driving power" which secured the ascendancy of the Hammurabi Dynasty at Babylon. Indeed, the ruling family which came into prominence there is believed to have been of Canaanitic origin.
Once Babylon became the metropolis it retained its pre-eminence until the end. Many political changes took place during its long and chequered history, but no rival city in the south ever attained to its splendour and greatness. Whether its throne was occupied by Amorite or Kassite, Assyrian or Chaldean, it was invariably found to be the most effective centre of administration for the lower Tigro-Euphrates valley. Some of the Kassite monarchs, however, showed a preference for Nippur.
Of its early history little is known. It was overshadowed in turn by Kish and Umma, Lagash and Erech, and may have been little better than a great village when Akkad rose into prominence. Sargon I, the royal gardener, appears to have interested himself in its development, for it was recorded that he cleared its trenches and strengthened its fortifications. The city occupied a strategic position, and probably assumed importance on that account as well as a trading and industrial centre. Considerable wealth had accumulated at Babylon when the Dynasty of Ur reached the zenith of its power. It is recorded that King Dungi plundered its famous "Temple of the High Head", E-sagila, which some identify with the Tower of Babel, so as to secure treasure for Ea's temple at Eridu, which he specially favoured. His vandalistic raid, like that of the Gutium, or men of Kutu, was remembered for long centuries afterwards, and the city god was invoked at the time to cut short his days.
No doubt, Hammurabi's Babylon closely resembled the later city so vividly described by Greek writers, although it was probably not of such great dimensions. According to Herodotus, it occupied an exact square on the broad plain, and had a circumference of sixty of our miles. "While such is its size," the historian wrote, "in magnificence there is no other city that approaches to it." Its walls were eighty-seven feet thick and three hundred and fifty feet high, and each side of the square was fifteen miles in length. The whole city was surrounded by a deep, broad canal or moat, and the river Euphrates ran through it.
"Here", continued Herodotus, "I may not omit to tell the use to which the mould dug out of the great moat was turned, nor the manner in which the wall was wrought. As fast as they dug the moat the soil which they got from the cutting was made into bricks, and when a sufficient number were completed they baked the bricks in kilns. Then they set to building, and began with bricking the borders of the moat, after which they proceeded to construct the wall itself, using throughout for their cement hot bitumen, and interposing a layer of wattled reeds at every thirtieth course of the bricks. On the top, along the edges of the wall, they constructed buildings of a single chamber facing one another, leaving between them room for a four-horse chariot to turn. In the circuit of the wall are a hundred gates, all of brass, with brazen lintels and side posts."[[264]] These were the gates referred to by Isaiah when God called Cyrus:
I will loose the loins of kings, to open before him the two
leaved gates; and the gates shall not be shut: I will go before
thee, and make the crooked places straight; I will break in pieces
the gates of brass, and cut in sunder the bars of iron.[[265]]
The outer wall was the main defence of the city, but there was also an inner wall less thick but not much inferior in strength. In addition, a fortress stood in each division of the city. The king's palace and the temple of Bel Merodach were surrounded by walls.
All the main streets were perfectly straight, and each crossed the city from gate to gate, a distance of fifteen miles, half of them being interrupted by the river, which had to be ferried. As there were twenty-five gates on each side of the outer wall, the great thoroughfares numbered fifty in all, and there were six hundred and seventy-six squares, each over two miles in circumference. From Herodotus we gather that the houses were three or four stories high, suggesting that the tenement system was not unknown, and according to Q. Curtius, nearly half of the area occupied by the city was taken up by gardens within the squares.
In Greek times Babylon was famous for the hanging or terraced gardens of the "new palace", which had been erected by Nebuchadnezzar II. These occupied a square which was more than a quarter of a mile in circumference. Great stone terraces, resting on arches, rose up like a giant stairway to a height of about three hundred and fifty feet, and the whole structure was strengthened by a surrounding wall over twenty feet in thickness. So deep were the layers of mould on each terrace that fruit trees were grown amidst the plants of luxuriant foliage and the brilliant Asian flowers. Water for irrigating the gardens was raised from the river by a mechanical contrivance to a great cistern situated on the highest terrace, and it was prevented from leaking out of the soil by layers of reeds and bitumen and sheets of lead. Spacious apartments, luxuriously furnished and decorated, were constructed in the spaces between the arches and were festooned by flowering creepers. A broad stairway ascended from terrace to terrace.
The old palace stood in a square nearly four miles in circumference, and was strongly protected by three walls, which were decorated by sculptures in low relief, representing battle scenes and scenes of the chase and royal ceremonies. Winged bulls with human heads guarded the main entrance.