 The Asian calendar was an adaptation of the Macedonian calendar used in the province of Asia and, with minor variations, in nearby cities and provinces.It is known in detail through the survival of decrees promulgating it issued in 8 BC by the proconsul Paullus Fabius Maximus.It renamed the first month Dios as "Kaisar", and arranged the months such that each month started on the ninth day before the kalends of the corresponding Roman month; thus the year began on 23 September, Augustus' birthday.