(Eastern) Saka or Sakan is a variety of Eastern Iranian languages, attested from the ancient Buddhist kingdoms of Khotan and Tumshuq in the Tarim Basin, in what is now southern Xinjiang, China. It is a Middle Iranian language. The two kingdoms differed in dialect, their speech known as Khotanese and Tumshuqese.Documents on wood and paper were written in modified Brahmi script with the addition of extra characters over time and unusual conjuncts such as ys for z.