From the late 10th to late 7th centuries BC, the Iranian peoples, together with the pre-Iranian kingdoms, fell under the domination of the Assyrian Empire, based in northern Mesopotamia. Under king Cyaxares, the Medes and Persians entered into an alliance with Nabopolassar of Babylon, as well as the Scythians and the Cimmerians, and together they attacked the Assyrian Empire. The civil war ravaged the Assyrian Empire between 616 BC and 605 BC, thus freeing their respective peoples from three centuries of Assyrian rule. The unification of the Median tribes under a single ruler in 728 BC led to the foundation of the Median Empire which, by 612 BC, controlled the whole Iran and the eastern Anatolia. This marked the end of the Kingdom of Urartu as well, which was subsequently conquered and dissolved.
Who lead the Persians into a coalition with the Medes, Babylon, Scythians, and Cimmerians to fight against the Assyrians?
king Cyaxares

The People's Republic of China issued its first round of official character simplifications in two documents, the first in 1956 and the second in 1964. A second round of character simplifications (known as erjian, or "second round simplified characters") was promulgated in 1977. It was poorly received, and in 1986 the authorities rescinded the second round completely, while making six revisions to the 1964 list, including the restoration of three traditional characters that had been simplified: 叠 dié, 覆 fù, 像 xiàng.
Who issued its first round of character simplifications in two documents?
The People's Republic of China

Many prokaryotic genes are organized into operons, with multiple protein-coding sequences that are transcribed as a unit. The products of operon genes typically have related functions and are involved in the same regulatory network.:7.3
What sort of functions do the products of operon genes typically have?
related functions