but often only from the end of late antiquity. The post-Classical period of Greek thus refers to the creation and evolution of Koine Greek throughout the entire Hellenistic and Roman eras of history until the start of the Middle Ages.

The linguistic roots of the Common Greek dialect had been unclear since ancient times. During the Hellenistic period, most scholars thought of Koine as the result of the mixture of the four main Ancient Greek dialects, "?