November (pronunciation) (help·info) is the 11th month of the year in the Gregorian Calendar and one of four Gregorian months with the length of 30 days. November retained its name (from the Latin novem meaning "nine") when January and February were added to the Roman calendar. November starts on the same day of the week as February in common years, and March every year. November is a month of spring in the Southern Hemisphere and autumn in the Northern Hemisphere. Therefore November in the Southern Hemisphere is the seasonal equivalent of May in the Northern Hemisphere and vice versa. November is Native American Heritage Month, Pancreatic Cancer Awareness Month, COPD Awareness month, National Novel Writing Month, Alzheimer's Disease Awareness Month, American Diabetes Month, Lung Cancer Awareness Month, National Homeless Youth Awareness Month, Crohn's & Ulcerative Colitis Awareness Month, National Pomegranate Month in the United States, and the month dedicated to the Holy Souls in...