Daniel 5:28

5:28 As for peres – your kingdom is divided and given over to the Medes and Persians.”

Daniel 8:20

8:20 The ram that you saw with the two horns stands for the kings of Media and Persia.

Daniel 6:8

6:8 Now let the king issue a written interdict so that it cannot be altered, according to the law of the Medes and Persians, which cannot be changed.