December is the twelfth month of the Gregorian calendar and it is the big month, with a total of 31 days. The lunar month is called Niuyue.
The Roman Emperor Lucius was going to name the last month of the year in December with the name of his mistress Amagonius, but was opposed by the Senate. Therefore, the old name Decem is still used in December, which means "10" in Latin. English December has evolved from this.
Solar terms in December: heavy snow, winter solstice. Holidays in December: World AIDS Day, Memorial Day for the Victims of the Nanjing Massacre, and Christmas. From December 2 to 4, 2016, the 2016 Chengdu International Tourism Exhibition was held at the Chengdu Century City New International Convention and Exhibition Center.