October (Roman month) October (Roman month) October (from Latin "octo", "eight") or mensis October was the eighth of ten months on the oldest Roman calendar. It had 31 days. October followed September (from "septem", "seven") and preceded November ("novem", "nine"). After the calendar reform that resulted in a 12-month year, October became the tenth month, but retained its numerical name, as did the other months from September through December. Some of the observances in October marked the close of the season for military campaigning and farming, which commenced in March ("Martius", "Mars' month"). October was under the guardianship "(tutela)" of Mars. The Romans
Intercalary month (Egypt) and "epagomenal days" derive from Latin ' ("proclaimed between") and Greek "epagómenoi" () or "epagómenai" (, "brought in" or "added on"), Latinized as '. The period is also sometimes known as the "monthless days". In ancient Egypt, the period was known as the "Five Days upon the Year" (), the "Five Days" (') or "Those upon the Year" ('), the last of which is transliterated as . Parker also proposed that in some cases the intercalary month was known by the name Thoth ("") after the festival that gave its name to the following month. In modern Egypt, the period