The Imperial Cult and LSJ

s.v. ἐπιφάνεια <(A)>, , LSJ reports:

2. esp. of deities appearing to a worshipper, manifestation, D.H.2.68, Plu.Them.30; advent, D.S.2.47; τὰς ὑπ’ αὐτῆς (sc. Ἀρτέμιδος) γενομένας ἐναργεῖς ἐ. SIG867.35 (Ephesus,ii A.D.); a manifestation of divine power, τὰς ἐ. τᾶς Παρθένου Klio16.204 (Chersonesus, iii B.C.), cf.LXX 2 Ma.15.27, D.S.1.25.

3. the first coming of Christ, 2 Ep.Ti.1.10; the second, 1 Ep.Ti.6.14,al.

4. of the accession of Caligula, Inscr.Cos391.

In their notes, Paton and Hicks wrote, 'The same idea is more fully, and more fulsomely, expressed in two inscriptions, Dittenberger, Sylloge (2nd ed.), No. 279 (Cyzicus), and Papers of the American Institute, i. p. 133 (Assos)'.