What is known in Iranian linguistic history as the "Middle Iranian" era is thought to begin around the 4th century BCE lasting through the 9th century. Linguistically the Middle Iranian languages are conventionally classified into two main groups, Western and Eastern. COUNT 2
QSN1 When did the age of Middle Iranian come to a close? ANS1 9th century QSN2 What are the two main divisions of Middle Iranian? ANS2 Western and Eastern