Decennalia

Noun

 * 1) * 1915, Arthur Evans, "Notes on the Coinage and Silver Currency in Roman Britain from Valentinian I to Constantine III", Numismatic Chronicle..., 4th Ser., Vol. 15, p. 436:
 * Seven pieces celebrate the Decennalia of Arcadius, which were due on Jan. 15, 393.
 * Seven pieces celebrate the Decennalia of Arcadius, which were due on Jan. 15, 393.