The Peshitta of Syriac-speaking people confessing Christianity was in widespread use from the fifth century C.E. onward. The word “Peshitta” means “simple.” The Hebrew Old Testament Scripture part was essentially a translation from the Hebrew, likely made during the second or third century C.E. However, a later revision involved comparing with the Septuagint.
Syriac is the language of ancient Syria and one of the dialects of Aramaic, which was an official language of the Persian Empire. It was spoken in northern Mesopotamia and around ancient Antioch. In the second or third century C.E., as a written language, Syriac came into wide use.