History of November In the old Roman calendar, November was called mensis november, the ninth month, because the Roman calendar started in March. November initially had 29 days. In 154 BCE, a rebellion forced the Roman senate to change the beginning of the civil year from March to January 1st.
November, 11th month of the Gregorian calendar. Its name is derived from novem, Latin for “nine,” an indication of its position in the early Roman