During his long reign he built temples, palaces, and fortifications in Assyria as well as in the other capitals of his provinces. His artists created many statues and stelae. Among the best known is the Black Obelisk, which includes a picture of Jehu of Israel paying tribute. The bronze doors from the town of Imgur-Enlil (Balawat) in Assyria portray the course of his campaigns and other undertakings in rows of pictures, often very lifelike. Hundreds of delicately carved ivories were carried away from Phoenicia, and many of the artists along with them; these later made Kalakh a centre for the art of ivory sculpture.
In the last four years of the reign of Shalmaneser, the crown prince Ashur-da’in-apla led a rebellion. The old king appointed his younger son Shamshi-Adad as the new crown prince. Forced to flee to Babylonia, Shamshi-Adad V (823–811) finally managed to regain the kingship with the help of Marduk-zakir-shumi I under humiliating conditions. As king he campaigned with varying success in southern Armenia and Azerbaijan, later turning against Babylonia. He won several battles against the Babylonian kings Marduk-balassu-iqbi and Baba-aha-iddina (about 818–12) and pushed through to Chaldea. Babylonia remained independent, however. Adad-nirari III and his successors
Shamshi-Adad V died while Adad-nirari III (810–783) was still a minor. His Babylonian mother, Sammu-ramat, took over the regency, governing with great energy until 806. The Greeks, who called her Semiramis, credited her with legendary accomplishments, but historically little is known about her. Adad-nirari later led several campaigns against the Medes and also against Syria and Palestine. In 804 he reached Gaza, but Damascus proved invincible. He also fought in Babylonia, helping to restore order in the north.
Shalmaneser IV (c. 783–773) fought against Urartu, then at the height of its power under King Argishti (c. 780–755). He successfully defended eastern Mesopotamia against attacks from Armenia. On the other hand, he lost most of Syria after a campaign against Damascus in 773. The reign of Ashur-dan III (772–755) was shadowed by rebellions and by epidemics of plague. Of Ashur-nirari V (754–746) little is known.
In Assyria the feudal structure of society remained largely unchanged. Many of the conquered lands were combined to form large provinces. The governors of these provinces sometimes acquired considerable independence, particularly under the weaker monarchs after Adad-nirari III. Some of them even composed their own inscriptions. The influx of displaced peoples into the cities of Assyria created large metropolitan centres. The spoils of war, together with an expanding trade, favoured the development of a well-to-do commercial class. The dense population of the cities gave rise to social tensions that only the strong kings were able to contain. A number of the former capitals of the conquered lands remained important as capitals of provinces. There was much new building. A standing occupational force was needed in the provinces, and these troops grew steadily in proportion to the total military forces. There are no records on the training of officers or on military logistics. The civil service also expanded, the largest administrative body being the royal court, with thousands of functionaries and craftsmen in the several residential cities.
The cultural decline about the year 1000 was overcome during the reigns of Ashurnasirpal II and Shalmaneser III. The arts in particular experienced a tremendous resurgence. Literary works continued to be written in Assyrian and were seldom of great importance. The literature that had been taken over from Babylonia was further developed with new writings, although one can rarely distinguish between works written in Assyria and works written in Babylonia. In religion, the official cults of Ashur and Ninurta continued, while the religion of the common people went its separate way.
In Babylonia not much was left of the feudal structure; the large landed estates almost everywhere fell prey to the inroads of the Aramaeans, who were at first half nomadic. The leaders of their tribes and clans slowly replaced the former landlords. Agriculture on a large scale was no longer possible except on the outskirts of metropolitan areas. The predominance of the Babylonian schools for scribes may have prevented the emergence of an Aramaean literature. In any case, the Aramaeans seem to have been absorbed into the Babylonian culture. The religious cults in the cities remained essentially the same. The Babylonian empire was slowly reduced to poverty, except perhaps in some of the cities.
In 764, after an epidemic, the Erra epic, the myth of Erra (the god of war and pestilence), was written by Kabti-ilani-Marduk. He invented an original plot, which diverged considerably from the old myths; long discourses of the gods involved in the action form the most important part of the epic. There is a passage in the epic claiming that the text was divinely revealed to the poet during a dream. The Neo-Assyrian Empire (746–609)
For no other period of Assyrian history is there an abundance of sources comparable to those available for the interval from roughly 745 to 640. Aside from the large number of royal inscriptions, about 2,400 letters, most of them more or less fragmentary, have been published. Usually the senders and recipients of these letters are the king and high government officials. Among them are reports from royal agents about foreign affairs and letters about cultic matters. Treaties, oracles, queries to the sun god about political matters, and prayers of or for kings contain a great deal of additional information. Last but certainly not least are paintings and wall reliefs, which are often very informative. Tiglath-pileser III and Shalmaneser V
The decline of Assyrian power after 780 was notable; Syria and considerable lands in the north were lost. A military coup deposed King Ashur-nirari V and raised a general to the throne. Under the name of Tiglath-pileser III (745–727), he brought the empire to its greatest expanse. He reduced the size of the provinces in order to break the partial independence of the governors. He also invalidated the tax privileges of cities such as Ashur and Harran in order to distribute the tax load more evenly over the entire realm. Military equipment was improved substantially. In 746 he went to Babylonia to aid Nabu-naṣir (747–734) in his fight against Aramaean tribes. Tiglath-pileser defeated the Aramaeans and then made visits to the large cities of Babylonia. There he tried to secure the support of the priesthood by patronizing their building projects. Babylonia retained its independence.
His next undertaking was to check Urartu. His campaigns in Azerbaijan were designed to drive a wedge between Urartu and the Medes. In 743 he went to Syria, defeating there an army of Urartu. The Syrian city of Arpad, which had formed an alliance with Urartu, did not surrender so easily. It took Tiglath-pileser three years of siege to conquer Arpad, whereupon he massacred the inhabitants and destroyed the city. In 738 a new coalition formed against Assyria under the leadership of Sam’al (modern Zincirli) in northern Syria. It was defeated, and all the princes from Damascus to eastern Anatolia were forced to pay tribute. Another campaign in 735, this time directed against Urartu itself, was only partly successful. In 734 Tiglath-pileser invaded southern Syria and the Philistine territories in Palestine, going as far as the Egyptian border. Damascus and Israel tried to organize resistance against him, seeking to bring Judah into their alliance. Ahaz of Judah, however, asked Tiglath-pileser for help. In 733 Tiglath-pileser devastated Israel and forced it to surrender large territories. In 732 he advanced upon Damascus, first devastating the gardens outside the city and then conquering the capital and killing the king, whom he replaced with a governor. The queen of southern Arabia, Samsil, was now obliged to pay tribute, being permitted in return to use the harbour of the city of Gaza, which was in Assyrian hands.