The language of the Kassites was not Afro-Asiatic.
 Other populous language families are the Dravidian languages of South Asia (among them Kannada, Tamil, and Telugu), the Turkic languages of Central Asia (such as Turkish), the Austroasiatic (among them Khmer), and TaiKadai languages of Southeast Asia (including Thai)
 However, Sumerian scribes already studied the differences between Sumerian and Akkadian grammar around 1900 BC

