The orations of Themistius, extant in the time of Photius (9th century), were thirty-six in number. Of these, thirty-three have come down to us in Greek. Two of them, however, (Orations 23 and 33, and perhaps Oration 28) are not fully preserved, and one (Oration 25) is a brief statement, not a full oration. Modern editions of the Orations have thirty-four pieces, because a Latin address to Valens has been included as Oration 12. It is now believed though that this Latin address is a 16th-century creation. The final oration (Oration 34) was discovered as recently as 1816 by Angelo Mai in the Ambrosian Library at Milan. There are, in addition, a few other fragments which may come from lost Orations, as well as an additional work which survives in Syriac and another preserved in Arabic.