Shiwasu

also known as  is the 12th month of the Japanese Lunisolar Calendar. Normally the Great Cold, the 24th solar term is in this month. 

The Chinese name is Làyuè (). The name comes from the winter sacrifice, just as February.

Festivals
The Laba Festival is Shiwasu 8. The original definition of the Laba festival was the day of the winter sacrifice (), and the date is the third Wùrì after the Winter Solstice.
The Preliminary Eve () is Shiwasu 23.
The New Year's Eve () is the last day of the year, Shiwasu 29 or 30.

Events
Aisin-Gioro Puyi, the 12th Qing emperor of China, issued the imperial abdication edict on Shiwasu 25, 1911.

Births
Emperor Go-Uda, the 91st emperor of Japan, Shiwasu 1, 1269
Tokugawa Ieyasu, the founder and first shōgun of the Tokugawa shogunate of Japan, Shiwasu 26, 1542
Uemura Masahisa, a Japanese Christian pastor, theologian and critic of Meiji and Taishō periods, Shiwasu 1, 1857
Imperial Noble Consort Shushen, an Imperial concubine of the Tongzhi Emperor, Shiwasu 1, 1859

Deaths
Yue Fei, Yue Yun, Zhang Xian, military generals who lived in the Southern Song dynasty, Shiwasu 29 1141
Lu You, a prominent poet of China's Southern Song dynasty, Shiwasu 29 1209
Emperor Go-Hanazono, the 102nd emperor of Japan, Shiwasu 27 1470
Lê Uy Mục,  the eighth king of the later Lê dynasty of Vietnam, Shiwasu 1 1509
Yi Gwang-sik, a Korean politician and general during the Joseon dynasty, Shiwasu 1 1563
 Dates of Shiwasu 
+ Dates of ShiwasuYearStartEndNumber of Days2008December 27January 25, 200930 days2009January 15, 2010February 13, 201030 days2010January 4, 2011February 2, 201130 days2011December 25January 22, 201229 days2012January 12, 2013February 9, 201329 days2013January 1, 2014January 30, 201430 days2014January 20, 2015February 18, 201530 days2015January 10, 2016February 7, 201629 days2016December 29January 27, 201730 days2017January 17, 2018February 15, 201830 days2018January 6, 2019February 4, 201930 days2019December 26January 24, 202030 days2020January 13, 2021February 11, 202130 days2021January 3, 2022January 31, 202229 days2022December 23January 21, 202330 days2023January 11, 2024February 9, 202430 days2024December 31January 28, 202529 days2025January 19, 2026February 16, 202629 days2026January 8, 2027February 6, 202730 days2027December 28January 26, 202830 days2028January 15, 2029February 12, 202929 days2029January 4, 2030February 2, 203030 days2030December 25January 22, 203129 days2031January 13, 2032February 10, 203229 days

References

*12