The Scythians (/ˈsɪθi.ən/ or /ˈsɪði.ən/; from Greek Σκύθης, Σκύθοι), also known as Scyth, Saka, Sakae, Sacae, Sai, Iskuzai, or Askuzai, were a large group of Iranian Eurasian nomads who were mentioned by the literate peoples surrounding them as inhabiting large areas in the central Eurasian steppes from about the 9th century BC until about the 1st century BC. The Scythian languages belonged to the Eastern branch of the Iranian languages. The "classical Scythians" known to ancient Greek historians were located in the northern Black Sea and fore-Caucasus region. Other Scythian groups documented by Assyrian, Achaemenid and Chinese sources show that they also existed in Central Asia, where they were referred to as the Iskuzai/Askuzai, Saka (Old Persian: Sakā; New Persian: ساکا; Greek: Σάκαι; A