The Sogdian alphabet was originally used for the Sogdian language, which belongs to the Iranian family, but it has many child systems such as Old Uyghur and other eastern Turkic languages.
The Sogdian alphabet was originally used for the Sogdian language. The Sogdian language belongs to the Iranian family. It has many child systems such as Old Uyghur. It has many child systems such as other eastern Turkic languages.