Although belonging to the Bronze Age, the Hittites were forerunners of the Iron Age, developing the manufacture of iron products from as early as the 14th century BC, when letters to foreign rulers reveal the demand for their iron goods. The Hittites were not, however, the first to work iron, and iron remained a precious metal throughout the history of their empire.
Tiglath-Pileser I (Akkadian, Tukultī-apil-Ešarra, "my trust is in the son of Eshara", reigned c. 1115 – 1076 BC (short chronology)) was the most notable Assyrian ruler between the Old and Neo-Assyrian kingdoms. In the wake of the Bronze Age collapse, he conquered all the lands in northern Mesopotamia. From his surviving inscriptions, he seems to have carefully cultivated a fear of himself in his subjects and enemies alike. Ultimately, his kingdom did not survive long after his death.