What does cognac mean in September?

September 21st refers to the 2nd1day of the ninth month of the lunar calendar.

September is the ninth month of the Gregorian calendar year, and it is a small month with a total of 30 days. The ninth month of the lunar calendar is called the dog month, and it is also called Chrysanthemum Month, Dressing Month, Green Girl Month, Oda Month, Long Month, Late Autumn, Late Autumn, Residual Autumn, Plain Autumn, Autumn White, Xuan Yue, Frost Season, Seasonal Quotient, Month, Seasonal Autumn, Cool Autumn and Late Shang.

The origin of September

According to the ancient Roman calendar, March is the first month and September is the seventh month. The name September comes from the Latin September, which means "seven". When the Romans adopted julian calendar, they kept the original name for several months, and September became "September".

At the beginning of the 9th century, Charlemagne, the emperor of Charlemagne, a feudal empire in western Europe, refused to accept the name of Rome and called September "the harvest moon", which was imitated in English. Therefore, September has always been called "Harvest Month" in English, which means "Harvest Month".