If you want to be really annoying, memorize the rhyme for remembering the markers of the Roman month ( the Kalends aren't included, since they're always the first day ):
32.
In Rome the relationship of Vulcan with Consus is apparent in the dates of their festivals and the fact that the " flamen volcanalis " officiated at the Kalends of May the sacrifice to Bona Dea.
33.
The date of August 1 seems to have been chosen to honor Augustus, being the Kalends of the month newly renamed after him, and in the Celtic calendar also a significant date, later celebrated as Lughnasadh.
34.
Carna's feast day was marked as " res divinae ", and thus the day was known as the " Kalendae fabariae ", the Bean-Kalends, since at this time the bean harvest matured.
35.
August formerly " Sextilis " in the Roman calendar had been renamed in honour of Augustus, and its kalends ( the first day of the month ) was particularly auspicious as the anniversary of his victory at Alexandria.
36.
The Julian reform did not change the method used to account days of the month in the pre-Julian calendar, based on the Kalends, Nones and Ides, nor did it change the positions of these three dates within the months.
37.
On the fourth kalends of April ( 29 March ) of 1016, William issued a granted alms to the monastery of Santa Maria de Lavaix, and the charter Bishop Suert to the same monastery " in the seventh year of their reign ".
38.
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.
39.
At Rome on the Kalends of every month the " pontifex minor " invoked her, under the epithet " Covella ", when from the " curia Calabra " announced the date of the " nonae ".
40.
Consequently, Saint John's Nativity was put on the " eighth day before the Kalends of July . " However, since June has only thirty days, in our present ( Germanic ) way of counting, the feast falls on June 24.