Nomenclature
The term Aryan has generally been used historically to denote the Indo-Iranians because Arya is the self designation of the Indo-Iranian languages and their speakers, specifically the Iranian and the Indo-Aryan peoples, collectively known as the Indo-Iranians. Some scholars now use the term Indo-Iranian to refer to this group, while the term "Aryan" is used to mean "Indo-Iranian" by other scholars such as Josef Wiesehofer.Population geneticist Luigi Luca Cavalli-Sforza, in his 1994 book The History and Geography of Human Genes, also uses the term Aryan to describe the Indo-Iranians.
Read more about this topic: Indo-Iranian Peoples