A “house of the rolls” was discovered at Koyunjik, the ancient Nineveh, in 1850 - a set of chambers, i. e., in the palace devoted exclusively to the storing of public documents. These were in baked clay, and covered the floor to the depth of more than a foot. Such a “house” was probably that at Babylon.
Related Commentaries of Ezra 6:1
Ezra 6:1
1 Then Darius the king made a decree, and search was made in the house of the rolls,a where the treasures were laid up in Babylon.