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
September (Roman month) The scales represent Libra, the astrological sign entered late in the month. In the "Laus omnium mensium" ("Praise of All the Months"), a poem dating to the early 6th century, September "divides the hours equally for Libra". In an ancient Christian mosaic from Gerasa in the province of Arabia (present-day Jordan), September has the typical attributes of a vintager in Roman art—a young man wearing a tunic and chlamys carries a bunch of grapes in his right hand and has a basket on his shoulder—but is labeled as "Gorpiaios", the first month of the year in the local calendar, equivalent