Cross reference
Daniel 1:21
21 And Daniel is unto the first year of Cyrus the king.
Daniel 6:28
28 And this Daniel hath prospered in the reign of Darius, and in the reign of Cyrus the Persian.
Daniel 10:1
1 In the third year of Cyrus king of Persia, a thing is revealed to Daniel, whose name is called Belteshazzar, and the thing `is' true, and the warfare `is' great: and he hath understood the thing, and hath understanding about the appearance.