Ezra 4:15

4:15 so that he may initiate a search of the records of his predecessors and discover in those records that this city is rebellious and injurious to both kings and provinces, producing internal revolts from long ago. It is for this very reason that this city was destroyed.

Ezra 6:1

Darius Issues a Decree

6:1 So Darius the king issued orders, and they searched in the archives of the treasury which were deposited there in Babylon.

Ezra 6:18

6:18 They appointed the priests by their divisions and the Levites by their divisions over the worship of God at Jerusalem, in accord with the book of Moses.