September is the ninth month of the year in the Gregorian Calendar, with 30 days. The name comes from the Latin septem, for "seven" -- September was originally the seventh month of the year, before January and February were inserted.

September begins on the same day of the week as December every year.

• In Greek civilization, September was called Boedromion.
• In the Irish Calendar the month is called Meán Fómhair (literally "Middle Autumn") and is the middle month of the Autumn season.

• Historical anniversaries
• September 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30