extinct Elamite language. One reason is that, while Elamite names may end in -uš, no Elamite texts spell the name this way — only Kuraš. Meanwhile, Old Persian did not allow names to end in -aš, so it would make sense for Persian speakers to change an original Kuraš into the more grammatically correct form Kuruš. Elamite scribes, on the other hand, would not have had a reason to change an original Kuruš into Kuraš, since both forms were acceptable. Therefore, Kuraš probably represents the original form. Dynastic history The Persian domination and kingdom in the Iranian plateau started as an extension of the Achaemenid dynasty, who expanded their earlier dominion possibly from the 9th century BC onward. The eponymous founder of the dynasty was Achaemenes (from Old Persian Haxāmaniš). Achaemenids are "descendants of Achaemenes", as Darius the Great, the ninth king of the dynasty, traces his ancestry to him, declaring "for this reason we are called Achaemenids." Achaemenes built the state Parsumash in the southwest of Iran and was succeeded by Teispes, who took the title "King of Anshan" after seizing the city Anshan and enlarging his kingdom further to include Pars proper. Ancient documents mention that Teispes had a son called Cyrus I, who also succeeded his father as "king of Anshan". Cyrus I had a full brother whose name is recorded as Ariaramnes. In 600 BC, Cyrus I was succeeded by his son, Cambyses I, who reigned until 559 BC. Cyrus II "the Great" was a son of Cambyses I, who had named his son after his father, Cyrus I. There are several inscriptions of Cyrus the Great and later kings that refer to Cambyses I as the "great king" and "king of Anshan". Among these are some passages in the Cyrus cylinder where Cyrus calls himself "son of Cambyses, great king, king of Anshan". Another inscription (from CM's) mentions Cambyses I as a "mighty king" and "an Achaemenian", which according to the bulk of scholarly opinion was engraved under Darius and considered as a later forgery by Darius. However Cambyses II's maternal grandfather Pharnaspes is named by historian Herodotus as "an Achaemenian" too. Xenophon's account in Cyropædia further names Cambyses's wife as Mandane and mentions Cambyses as king of Iran (ancient Persia). These agree with Cyrus's own inscriptions, as Anshan and Parsa were different names of the same land. These also agree with other non-Iranian accounts,