Answer: He united the nomadic tribes. He improved the Persian military. He built roads to link trade routes and the first postal system. He showed religious and political tolerance to conquered peoples.
Step-by-step explanation:
Emperor Cyrus is considered one of the most tolerant rulers in Persian history. The empire he ruled was huge, the largest in the world at the time. It connected many parts of the empires with quality infrastructure. He improved the quality and efficiency of the army and gave people freedom of religion. In that way, he created harmony in the empire in which he ruled and reduced the possibility of possible rebellions.