How many months are in the roman calendar?
The original Roman calendar is believed to have been an observational lunar calendar whose months began from the first signs of a new crescent moon. Because a lunar cycle is about days long, such months would have varied between 29 and 30 days. Twelve such months would have fallen 10 or 11 days short of the solar year; without adjustment, such a year would have quickly rotated out of alignment with the seasons in the manner of the Islamic calendar. Given the seasonal aspects of the later calendar and its associated religious festivals, this was presumably avoided through some form of intercalation or the suspension of the calendar during winter.
How many months are in the roman lunar calendar in a solar year?
Twelve
Roman calendar
No context provided
How many months are in the romans' first organized calendar?
ten
No context provided
How many months are in the roman republic's calendar in a solar year?
12 1⁄2
Roman calendar
https://en.wikipedia.org/wiki/Roman%20calendar
The Romans themselves described their first organized year as one with ten fixed months, each of 30 or 31 days.[2][3] Such a decimal division fitted general Roman practice.[4] The four 31 day months were called "full" (pleni) and the others "hollow" (cavi).[5][6] Its 304 days made up exactly 38 nundinal cycles.
Roman calendar
The attested calendar of the Roman Republic was quite different. It followed Greek calendars in assuming a lunar cycle of 29+1⁄2 days and a solar year of 12+1⁄2 synodic months (368+3⁄4 days), which align every fourth year after the addition of two intercalary months.[6] Two months were added at the end of the year to complete the cycle during winter, January and February, before the intercalary month inserted every two years; the intercalary month was sometimes known as Mercedonius.
Roman calendar
The Roman Calendar went through different revisions throughout history. The original one is believed to have been an observational lunar calendar with twelve months that would have fallen 10 or 11 days short of the solar year. Nonetheless, their first organized calendar was one with ten fixed months, each of 30 or 31 days named "hollow" or "full" respectively. The later Roman Republican Calendar was quite different from previous iterations as it followed Greek calendars in assuming a lunar cycle of 29 1⁄2 days and a solar year of 12 1⁄2 synodic months.