The greater part of Assyrian literature was either taken over from Babylonia or written by the Assyrians in the Babylonian dialect, who modeled their works on Babylonian originals. The Assyrian dialect was used in legal documents, court and temple rituals, and collections of recipes—as, for example, in directions for making perfumes. A new art form was the picture tale: a continuing series of pictures carved on square stelae of stone. The pictures, showing war or hunting scenes, begin at the top of the stela and run down around it, with inscriptions under the pictures explaining them. These and the finely cut seals show that the fine arts of Assyria were beginning to surpass those of Babylonia. Architecture and other forms of the monumental arts also began a further development, such as the double temple with its two towers (ziggurat). Colourful enameled tiles were used to decorate the facades. Assyria and Babylonia from c. 1000 to c. 750 bce Assyria and Babylonia until Ashurnasirpal II
The most important factor in the history of Mesopotamia in the 10th century was the continuing threat from the Aramaean seminomads. Again and again, the kings of both Babylonia and Assyria were forced to repel their invasions. Even though the Aramaeans were not able to gain a foothold in the main cities, there are evidences of them in many rural areas. Ashur-dan II (934–912) succeeded in suppressing the Aramaeans and the mountain people, in this way stabilizing the Assyrian boundaries. He reintroduced the use of the Assyrian dialect in his written records.
Adad-nirari II (c. 911–891) left detailed accounts of his wars and his efforts to improve agriculture. He led six campaigns against Aramaean intruders from northern Arabia. In two campaigns against Babylonia he forced Shamash-mudammiq (c. 930–904) to surrender extensive territories. Shamash-mudammiq was murdered, and a treaty with his successor, Nabu-shum-ukin (c. 904–888), secured peace for many years. Tukulti-Ninurta II (c. 890–884), the son of Adad-nirari II, preferred Nineveh to Ashur. He fought campaigns in southern Armenia. He was portrayed on stelae in blue and yellow enamel in the late Hittite style, showing him under a winged sun—a theme adopted from Egyptian art. His son Ashurnasirpal II (883–859) continued the policy of conquest and expansion. He left a detailed account of his campaigns, which were impressive in their cruelty. Defeated enemies were impaled, flayed, or beheaded in great numbers. Mass deportations, however, were found to serve the interests of the growing empire better than terror. Through the systematic exchange of native populations, conquered regions were denationalized. The result was a submissive, mixed population in which the Aramaean element became the majority. This provided the labour force for the various public works in the metropolitan centres of the Assyrian empire. Ashurnasirpal II rebuilt Kalakh, founded by Shalmaneser I, and made it his capital. Ashur remained the centre of the worship of the god Ashur—in whose name all the wars of conquest were fought. A third capital was Nineveh.
Ashurnasirpal II was the first to use cavalry units to any large extent in addition to infantry and war-chariot troops. He also was the first to employ heavy, mobile battering rams and wall breakers in his sieges. Following after the conquering troops came officials from all branches of the civil service, because the king wanted to lose no time in incorporating the new lands into his empire. The supremacy of Assyria over its neighbouring states owed much to the proficiency of the government service under the leadership of the minister Gabbilani-eresh. The campaigns of Ashurnasirpal II led him mainly to southern Armenia and Mesopotamia. After a series of heavy wars, he incorporated Mesopotamia as far as the Euphrates River. A campaign to Syria encountered little resistance. There was no great war against Babylonia. Ashurnasirpal, like other Assyrian kings, may have been moved by religion not to destroy Babylonia, which had almost the same gods as Assyria. Both empires must have profited from mutual trade and cultural exchange. The Babylonians, under the energetic Nabu-apla-iddina (c. 887–855) attacked the Aramaeans in southern Mesopotamia and occupied the valley of the Euphrates River to about the mouth of the Khābūr River.
Ashurnasirpal, so brutal in his wars, was able to inspire architects, structural engineers, and artists and sculptors to heights never before achieved. He built and enlarged temples and palaces in several cities. His most impressive monument was his own palace in Kalakh, covering a space of 269,000 square feet (25,000 square metres). Hundreds of large limestone slabs were used in murals in the staterooms and living quarters. Most of the scenes were done in relief, but painted murals also have been found. Most of them depict mythological themes and symbolic fertility rites, with the king participating. Brutal war pictures were aimed to discourage enemies. The chief god of Kalakh was Ninurta, god of war and the hunt. The tower of the temple dedicated to Ninurta also served as an astronomical observatory. Kalakh soon became the cultural centre of the empire. Ashurnasirpal claimed to have entertained 69,574 guests at the opening ceremonies of his palace. Shalmaneser III and Shamshi-Adad V of Assyria
The son and successor of Ashurnasirpal was Shalmaneser III (858–824). His father’s equal in both brutality and energy, he was less realistic in his undertakings. His inscriptions, in a peculiar blend of Assyrian and Babylonian, record his considerable achievements but are not always able to conceal his failures. His campaigns were directed mostly against Syria. While he was able to conquer northern Syria and make it a province, in the south he could only weaken the strong state of Damascus and was unable, even after several wars, to eliminate it. In 841 he laid unsuccessful siege to Damascus. Also in 841 King Jehu of Israel was forced to pay tribute. In his invasion of Cilicia, Shalmaneser had only partial success. The same was true of the kingdom of Urartu in Armenia, from which, however, the troops returned with immense quantities of lumber and building stone. The king and, in later years, the general Dayyan-Ashur went several times to western Iran, where they found such states as Mannai in northwestern Iran and, farther away in the southeast, the Persians. They also encountered the Medes during these wars. Horse tribute was collected.
In Babylonia, Marduk-zakir-shumi I ascended the throne about the year 855. His brother Marduk-bel-usati rebelled against him, and in 851 the king was forced to ask Shalmaneser for help. Shalmaneser was only too happy to oblige; when the usurper had been finally eliminated (850), Shalmaneser went to southern Babylonia, which at that time was almost completely dominated by Aramaeans. There he encountered, among others, the Chaldeans, mentioned for the first time in 878 bce, who were to play a leading role in the history of later times; Shalmaneser made them tributaries.