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| | Roman to Julian Conversion: Calendars |
 | | Antiates Maiores shows a fixed Intercalaris of 27 days, with the Kalends being assigned a nundinal letter of G, and ending with a nundinal letter of A, as in a standard Februarius, so we must conclude that the intercalary month itself was fixed, and the variability was handled in a different way. |
 | | Macrobius, Saturnalia 1.13.19, describes an additional intercalary day that could be inserted, also around the Terminalia or into an intercalary month, in order to avoid having a market day fall on the Nones, or on the first day of the year. |
 | | If the intercalary month was 23 days, the effect of the extra day would be to convert it to a 24-day intercalary month; since 24 is a multiple of 8, this would not change the relationship of the market day to the Nones. |
| www.tyndale.cam.ac.uk /Egypt/ptolemies/chron/roman/chron_rom_cal.htm (2993 words) |
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