The Medes was one tribe of the Aryan people who entered the plateau of Iran in the first centuries of the 1st millennium BC, along with other tribes. The Median empire chooses the Zagros mountain range to inhabit, from the beginning their first encountered difficulties were conflicts with other tribes who lived there but in the end by the ethnic and cultural integration between them and other tribes who lived in the Zagros mountain range Led to the foundation a union called the Medes Union.
Furthermore, another reason for the formation of such a union was the violence and aggression of the Assyrian Empire. Finally, the Union succeeded in exterminating the Assyrian Empire. The grandeur time of the Median Empire was 614 BC when Cyaxares conquered the city of Nineveh with the Babylonian alliance and succeeded in completely extinct the Assyrian empire. After the conquest of Nineveh, the Medes ruled Iranian plateau lands for 60 years, until ultimate years of rising dissatisfaction and extreme poverty. These reasons led to the conquer of Pasargadae by a Persis nobleman named Cyrus the Great. This rebellion triggered exterminating the Median Empire and even beyond it! Establish one of the greatest dynasties in history.