Gaius Suetonius Tranquillus, Claudius  21.1  (ca. A.D. 98-117):

Spectacula quoque complura et magnifica edidit, non usitata modo ac solitis locis, sed et commenticia et ex antiquitate repetita, et ubi praetera nemo ante cum. Ludos dedicationis Pompeiani theatri, quod ambustum restituerat, e triubunali posito in orchestra commisit, cum prius apud superiores aedes supplicasset perque mediam caveam sedentibus ac silentibus cunctis descendisset.

He [Claudius] also produced several magnificent shows, not only the customary ones and in the usual places, but also newly inaugerated shows and shows recalled from antiquity, and further where places no one before him had ever given them before. He set on foot from a raised platform in the orchestra, after first he had dedicated at the shrines above and descended through the middle of the cavea with all sitting and being silence. (J. C. Rolfe, trans.)