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October History

This month’s name stems from the Latin octo, “eight,” because this was the eighth month of the early Roman calendar. When the Romans converted to a 12-month calendar, the name October stuck despite the fact that it’s now the 10th month!

The early Roman calendar, thought to have been introduced by Rome’s first king, Romulus (around 753 b.c), was a lunar calendar. This ancient timekeeping system contained these 10 months: Martius, Aprilis, Maius, Iunius, Quintilis, Sextilis, September, October (the eighth month), November, and December. Martius, Maius, Quintilis, and October contained 31 days, while the other months had 30, for a total of 304 days. In winter, the days were not counted for two lunar cycles.

It wasn’t until about 713 b.c. that a calendar reform, attributed to the second Roman king, Numa Pompilius, added the months Ianuarius and Februarius. Some historians think that both months were placed at the end of the year, while others believe that Ianuarius became the first month and Februarius the last. Later reforms organized the months as they are arranged today in the Gregorian calendar, whereby October became the 10th month despite its name.

October Astronomical Events

October is a great time for stargazing.

October’s full Moon, known as the Hunter’s Moon, arrives on Thurdsday, October 17. Like September’s Harvest Moon, the Hunter’s Moon is closely tied to the autumnal equinox.

Draconid meteor shower in the late evening of October 9, and the Orionid meteor shower in the predawn hours of October 21–22.

October Holidays and Traditions

Rosh Hashanah, a Jewish holiday that marks the beginning of the new year. (October 2nd)

The start of Yom Kippur at sundown. (October 11th)

Indigenous Peoples' Day & Canadian Thanksgiving (October 14th)

United Nations Day (October 24th)

And last, but not least, Halloween! (October 31st)

- Fun facts are from The Old Farmer's Almanac online