ante diem xviii kalendas octobres

ludi Romani (day 10 )

equorum probatio -- the official cavalry parade of the equites (in conjunction with the above)

23 A.D. -- death of Nero Claudius Drusus (Drusus the Younger), son of the emperor Tiberius and Vipsania Agrippina

81 A.D. -- official dies imperii of Domitian (recognition by the senate)

208 A.D. -- birth of the future emperor Diadumenianus?

258 A.D. -- martyrdom of Cyprian