1) Iranian country 
Osrūshana (اسروشنه) or Oshrūsana (Persian اُشروسنه - Ošrūsana), also known as Istarawshan (at present) Sudujshana, Usrushana, Ustrushana, Eastern Chao, was a former Iranian region in Transoxiana. The Oshrusana lay to the south of the great, southernmost bend of the Syr Darya and extended roughly from Samarkand to Khujand. The ca...