Who started numbering days of the month?
The Julian calendar retained the Roman republican calendar method of numbering the days of the month. Compared with the present system, the Roman numbering seems to run backward, for the first day of the month was known as the Kalendae, but subsequent days were not enumerated as so many after the Kalendae but as so many before the following Nonae (“nones”), the day called nonae being the ninth day before the Ides (from iduare, meaning “to divide”), which occurred in the middle of the month and were supposed to coincide with the Full Moon. Days after the Nonae and before the Ides were numbered as so many before the Ides, and those after the Ides as so many before the Kalendae of the next month. When did weeks go into usage again? Which were festive days? It should be noted that there were no weeks in the original Julian calendar. The days were designated either dies fasti or dies nefasti, the former being business days and days on which the courts were open; this had been the practice i
