Note 172

The Era of Caesar, which in Spain was in legal and popular use till the fourteenth century, begins thirty-eight years before the birth of Christ. I would refer the origin to the general peace by sea and land, which confirmed the power and partition of the Triumvirs (Dion Cassius, l. xlviii. p. 547, 553 {c 28 and 36}. Appian de Bell. Civil. l. v. {c. 72} p. 1034, edit. fol.). Spain was a province of Caesar Octavian; and Tarragona, which raised the first temple to Augustus (Tacit. Annal. i. 78), might borrow from the Orientals this mode of flattery.
The History Of The Decline And Fall Of The Roman Empire Fall In The EastChapter 51