Cyrus the Great was king of Persia from about 560 to 530 BCE, conquering Babylon in 539 BCE. He was succeeded by his son, Cambyses, who was killed in battle in 522 BCE.
Bardia, who may have been the brother of Cambyses, usurped the throne while Cambyses was in the provinces, coincidently shortly before his death. Darius, although a Mede, would not accept the usurpation and overthrew Bardia in 522, ruling until 486 BCE. Prior to this, Darius was a military commander. Even if old enough to have held a military commission when Cyrus conquered Babylon, he would not have come to the attention of Cyrus, as a Mede and because Cyrus had at least one and probably two able sons.
Darius was scarcely a contemporary of Cyrus, but a great deal of confusion has arisen because of historical errors in the Book of Daniel, which places Darius before Cyrus in its account.
Back in 539BC, the Persians conquered Babylon.
Cyrus Cyrus the Great.
Cyrus the Great.
Cyrus conquered Babylon.
Cyrus showing so much wisdom lead Babylon to accept him as their ruler.
King Cyrus the Great.
539 BC-Babylon was conquered by Cyrus, defeating Nabonidus.
Under Cyrus II (also known as Cyrus the Great) Persia conquered Babylon.
He established stability in the Persian Empire which his predecessors Cyrus and Cambyses had conquered.
Yes, Darius was a historical person, but he was not the person who conquered Babylon and freed the Jews, as stated in the Book of Daniel. He was also not the son of Xerxes, rather the father of Xerxes. Cyrus the Great, who ruled the Persian Empire from c. 560-530 BCE, was the conqueror of Babylon and the great king who allowed the Jews to return to Judah if they wished. Darius ruled the Persian Empire 522 - 486 BCE.
I think not. Darius Mede may not be in the line of Darius I, II, III. it's just a 'Darius" in Daniel who ordered Daniel to be put in the lion's den. He could be coexisting with Cyrus II to oversee Babylon while Cyrus II is King of Persia.
The Israelites were held captive in Babylon.