After two centuries for which sources reveal nothing, the Middle Elamite period opened with the rise to power of the Anzanite dynasty, whose homeland probably lay in the mountains northeast of modern Khūzestān. Political expansion under Khumbannumena (c. 1285–c. 1266 bc), the fourth king of this line, proceeded apace, and his successes were commemorated by his assumption of the title “Expander of the Empire.” He was succeeded by his son, Untash-Gal (Untash [d] Gal, or Untash-Huban), a contemporary of Shalmaneser I of Assyria (c. 1274–c. 1245 bc) and the founder of the city of Dūr Untash (modern Choghā Zanbīl). In the years immediately following Untash-Gal’s reign, Elam increasingly found itself in real or potential conflict with the rising power of Assyria. Tukulti-Ninurta I of Assyria campaigned in the mountains north of Elam in the latter part of the 13th century bc. The Elamites under Kidin-Khutran, the second king after Untash-Gal, countered with a successful and devastating raid on Babylonia. In the end, however, Assyrian power seems to have been too great. Tukulti-Ninurta managed to expand, for a brief time, Assyrian control well to the south in Mesopotamia. Kidin-Khutran faded into obscurity, and the Anzanite dynasty came to an end.
After a short period of dynastic troubles, the second half of the Middle Elamite period opened with the reign of Shutruk-Nahhunte I (c. 1160 bc). Two equally powerful and two rather less impressive kings followed this founder of a new dynasty, whose home was probably Susa, and in this period Elam became one of the great military powers of the Middle East. Tukulti-Ninurta died about 1208 bc, and Assyria fell into a period of internal weakness and dynastic conflict. Elam was quick to take advantage of this situation by campaigning extensively in the Diyālā River area and into the very heart of Mesopotamia. Shutruk-Nahhunte I captured Babylon and carried off to Susa the stela on which was inscribed the famous law code of Hammurabi. Shilkhak-In-Shushinak, brother and successor of Shutruk-Nahhunte’s eldest son, Kutir-Nahhunte, still anxious to take advantage of Assyrian weakness, campaigned as far north as the area of modern Kirkūk. In Babylonia, however, the 2nd dynasty of Isin led a native revolt against such control as the Elamites had been able to exercise there, and Elamite power in central Mesopotamia was eventually broken. The Elamite military empire began to shrink rapidly. Nebuchadrezzar I of Babylon (c. 1119–c. 1098 bc) attacked Elam and was just barely thwarted. A second Babylonian attack succeeded, however, and the whole of Elam was apparently overrun, ending the Middle Elamite period.
It is noteworthy that during the Middle Elamite period the old system of succession to, and distribution of, power appears to have broken down. Increasingly, son succeeded father, and less is heard of divided authority within a federated system. This probably reflects an effort to increase the central authority at Susa in order to conduct effective military campaigns abroad and to hold Elamite foreign conquests. The old system of regionalism balanced with federalism must have suffered, and the fraternal, sectional strife that so weakened Elam in the Neo-Elamite period may have had its roots in the centrifugal developments of the 13th and 12th centuries bc. The Neo-Elamite period
A long period of darkness separates the Middle and Neo-Elamite periods. In 742 bc a certain Huban-Nugash is mentioned as king in Elam. The land appears to have been divided into separate principalities, with the central power fairly weak. During the next century the Elamites constantly attempted to interfere in Mesopotamian affairs, usually in alliance with Babylon, against the constant pressure of Neo-Assyrian expansion. At times they were successful with this policy, both militarily and diplomatically, but on the whole they were forced to give way to increasing Assyrian power. Local Elamite dynastic troubles were from time to time compounded by both Assyrian and Babylonian interference. Meanwhile the Assyrian army whittled away at Elamite power and influence in Luristan. In time these internal and external pressures produced a near total collapse of any meaningful central authority in Elam. In an effort to clean up a political and diplomatic mess that had become a chronic headache for the Assyrians, Ashurbanipal’s armies mounted a series of campaigns between 692 and 639 bc that utterly destroyed Susa, pulling down buildings, looting, and sowing the land of Elam with salt. The protohistoric period and the kingdom of the Medes
The beginning of the Iron Age is marked by major dislocations of cultural and historical patterns in western Iran (almost nothing is known of the eastern half of the plateau in the Iron Age). The Iron Age itself is divided into three periods: Iron Age I (c. 1300–c. 1000 bc), Iron Age II (c. 1000–c. 800/750 bc), and Iron Age III (c. 750–c. 550 bc). The latter is the archaeological equivalent of what historically can be called the Median period. The coming of the Iranians
Though isolated groups of speakers of Indo-European languages had appeared and disappeared in western Iran in the 2nd millennium bc, it was during the Iron Age that the Indo-European Iranians rose to be the dominant force on the plateau. By the mid-9th century bc two major groups of Iranians appeared in cuneiform sources: the Medes and the Persians. Of the two the Medes were the more widespread and, from an Assyrian point of view, the more important group. When Assyrian armies raided as far east as modern Hamadān, they found only Medes. In the more western Zagros they encountered Medes mixed with non-Iranian indigenous peoples. Early in the 1st millennium Iranian Medes already controlled almost all of the eastern Zagros and were infiltrating, if not actually pushing steadily into, the western Zagros, in some areas right up to the edge of the plateau and to the borders of lowland Mesopotamia. Persians also appear in roughly the same areas, though their exact location remains controversial. At times they seem to have settled in the north near Lake Urmia, at times in the central western Zagros near modern Kermānshāh, later certainly in the southwestern Zagros somewhere near the borders of Elam, and eventually, of course, in the region of Fārs. It has been argued that these various locations represent a nomadic tribe on the move; more likely they represent more than one group of Persians. What is reasonably clear from the cuneiform sources is that these Medes and Persians (and no doubt other Iranian peoples not identified by name) were moving into western Iran from the east. They probably followed routes along the southern face of the Elburz Mountains and, as they entered the Zagros, spread out to the northwest and southeast following the natural topography of the mountains. Where they could, they infiltrated farther west—for example, along the major pass across the mountains from Hamadān to Kermānshāh. In doing so, they met resistance from the local settled populations, who often appealed to Urartu, Assyria, and Elam for assistance in holding back the newcomers. Such appeals were, of course, most welcome to these great powers, who were willing to take advantage of the situation both to advance their interests at each other’s expense and to control the Iranian threat to themselves.