Wang Chong of the Eastern Han refuted day taboos, Tai Sui avoidance and fear of spirit harm in the Lunheng chapters Jiri, Biansui and Nansui, with quotes.
Rằm tháng 7 is when families make offerings to the Buddha, deities, ancestors and wandering souls, with guidance on timing, the tray and what to avoid.
The Thần Tài prayer in Vietnamese folk tradition: origins, meaning, offerings, how to worship, and the full prayer, the first of the month and the full moon.
Thiên Quan and Thiên Phúc are Earth auxiliary stars placed by the birth year's heavenly stem, not the branch or hour, with tables and points of disagreement.
Tuần thất is seven weekly offerings over 49 days; the 49th day is chung thất; the 100th day is tốt khốc, the end of weeping. Origins and how each is done.
Updated 11 Oct 2026Culture and belief
Knowledge › Vietnam › Vietnamese commemorative days
Nhị thập bát tú trực nhật assigns 28 stars to rule days in a cycle, tied to diễn cầm and date selection. This article analyses its origins and calculation.
Learn about the origin of International Women's Day on March 8 from the 1908 New York garment workers' movement and its meaning in honoring women worldwide.
Updated 2 Aug 2026Culture and belief
Knowledge › Vietnam › Vietnamese commemorative days
International Children's Day on June 1 began in 1949 to honor children killed by Nazi Germany in Lidice and Oradour, and Vietnam has marked it since 1950.
Updated 3 Aug 2026Culture and belief
Knowledge › Vietnam › Vietnamese commemorative days
Vietnam Doctors' Day (February 27) traces back to Ho Chi Minh's 1955 letter to a health cadres conference. Learn its origin, three teachings, and meaning.
Solar terms set Yang Dun or Yin Dun, and the fu tou day sets the yuan. This guide covers ju numbers, super spirit and qi continuation, Zhi Fu and Zhi Shi.
Updated 25 Sept 2026Traditional systems
Knowledge › Vietnam › Vietnamese commemorative days
The International Day of Older Persons on October 1 was established in 1990 by UN Resolution 45/106. Learn its origin, meaning, and how Vietnam observes it.
Updated 22 Jul 2026Culture and belief
Knowledge › Vietnam › Vietnamese commemorative days
The rites after a Vietnamese funeral: the ngu rites, the 49th and 100th days, tiểu tường, đại tường and the end of mourning, as old ritual books record.
Tết Đoan Ngọ falls at noon on the 5th day of the 5th lunar month, when folk belief says yang energy peaks. The bug-killing custom and ancestor worship.
The gio day is an annual memorial rite held on the lunar death date of a family member. This article explains its origin, meaning, and how it is understood.
Đằng Xà, Bạch Hổ and Huyền Vũ are three of the six beasts in Lục Hào, started by the day stem. Each spirit's nuance is analysed, and none decides fortune.
First-day Tet travel for 2027: how to choose the hour and direction, prepare offerings, and follow the route, plus why sources disagree on the calculations.