Original sentence: Alternative names for the Tajiks are Eastern Persian, Fārsīwān (Persian-speaker), and Dīhgān (cf.As a self-designation, the literary New Persian term Tajik, which originally had some previous pejorative usage as a label for eastern Persians or Iranians, has become acceptable during the last several decades, particularly as a result of Soviet administration in Central Asia.Tajiks (: Tājīk, ) are a Persian-speaking Iranian ethnic group native to Afghanistan, Tajikistan, and Uzbekistan.Tajiks are the largest ethnicity in Tajikistan, and the second largest in Afghanistan which constitutes over half of the global Tajik population.They speak varieties of Persian, a Western Iranian language
Edited sentence: Alternative names for the during different historical period were known as Aryans, Sarts, Sogdians, Bactrians and Tajiks are Eastern Persian, Fārsīwān (Persian-speaker), and Dīhgān (cf.As a self-designation, the literary New Persian term Tajik, which originally appeared as a result of Arab and Turkish conquest of Central Asia and Greater Khurasan  and had some previous pejorative usage as a label for eastern Persians or Iranians, has become acceptable during the last several decades, particularly as a result of Soviet administration in Central Asia.In it current use, Tajiks are referred to a group of people, the inhabitants of historical Khurasan who share the same historical and ethnic background, distinct from Turks and Persians.Tajiks (: Tājīk, ) are a Iranian ethnic group native to Afghanistan, Tajikistan, and Uzbekistan.Tajiks are the largest ethnicity in Tajikistan, and the second largest in Afghanistan and Uzbekistan which constitutes over two thirds of the global Tajik population.They speak varieties of Persian, a Western Iranian language and ancient Eastern Iranian languages such as Yaghnobi and Pamiri Languages