The East Semitic languages are one of six fairly uncontroversial divisions of the Semitic languages, the others being Northwest Semitic, Arabian, Old South Arabian (also known as Sayhadic), Modern South Arabian, and Ethio-Semitic. The East Semitic group is attested by two distinct languages, Akkadian and Eblaite, both of which have been long extinct. They stand apart from other Semitic languages, traditionally called West Semitic, in a number of respects. Historically, it is believed that this linguistic situation came about as speakers of East Semitic languages wandered further east, settling in Mesopotamia during the third millennium BCE, as attested by Akkadian texts from this period. By the beginning of the second millennium BCE, East Semitic languages, in particular Akkadian, had come to dominate the region. They were influenced by the non-Semitic Sumerian language and adopted cuneiform writing.