In the first year of Darius, the son of Ahasuerus, a Mede by birth, who was ruler over the kingdom of the Chaldeans:
At the beginning of the reign of Ahasuerus, the people who were already in the land wrote an accusation against the residents of Judah and Jerusalem.
These events took place during the days of Ahasuerus, who ruled 127 provinces from India to Cush.
Daniel remained there until the first year of King Cyrus.
young men without any physical defect, good-looking, suitable for instruction in all wisdom, knowledgeable, perceptive, and capable of serving in the king’s palace — and to teach them the Chaldean language and literature.
In the first year of Darius the Mede, I stood up to strengthen and protect him.
and Darius the Mede received the kingdom at the age of 62.
Darius decided to appoint 120 satraps over the kingdom, stationed throughout the realm,
So Daniel prospered during the reign of Darius and the reign of Cyrus the Persian.