Knowledge › Eastern › Psychology A 2024 study of Vietnamese firms links lower fixed asset investment to directors aged 49 to 53, the tuoi han years. The effect is larger in small firms.
Updated 27 Sept 2026
Knowledge › Vietnam › Life-cycle rites The longevity celebration honours grandparents and parents at ages 60, 70, 80, 90 or 100, showing filial piety and respect for old age in Vietnamese culture.
Updated 13 Sept 2026 Culture and belief
Knowledge › Western › Numerology Discover Life Path Number 33, the rarest master number in numerology: profound compassion, a healing calling, ideal careers, and the challenges it brings.
Updated 20 Jun 2026 Modern system
Dictionary › Folk taboos Tuổi mụ is the Vietnamese lunar way of counting age: current year minus birth year, plus one, and folk calculations use this number.
Updated 12 Sept 2026 Calendar and astronomy
Knowledge › Western › Numerology Challenge Number 1 in numerology points to lessons about confidence, dependence and asserting yourself, plus ways to build courage and independence.
Updated 3 Sept 2026 Modern system
Knowledge › Eastern › I Ching Hexagram Phong Sơn Tiệm No. 53 in the I Ching speaks of gradual advance in proper order, shown through the wild goose passing six stages.
Updated 26 Sept 2026 Traditional systems
Dictionary › Folk taboos Kim Lâu is a Vietnamese folk taboo checked before building a house or marrying, found by dividing lunar age by nine, with remainders of 1, 3, 6 or 8.
Updated 12 Sept 2026 Traditional systems
Knowledge › Vietnam › Vietnam's ethnic communities The O Du people speak a Mon-Khmer language and live mainly in Tương Dương, Nghệ An, known for the thunder welcoming festival and the house spirit cult.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Ba Na live in Gia Lai, Kon Tum and western Bình Định, Phú Yên and Khánh Hoà, speak a Mon-Khmer language and keep many community festivals.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Dao are one of Vietnam's 54 ethnic groups. Where they live, their Hmong-Dao language, ancestor and Bàn Vương worship, and cap sac rites.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Giay live mainly in Lào Cai, Hà Giang and Lai Châu, speak a Thai-Kadai language, and keep an altar with three incense bowls.
Updated 19 Sept 2026 Culture and belief
Knowledge › Eastern › Vietnamese astrology Thiên Thương sits in the Nô Bộc palace and Thiên Sứ in Tật Ách. Placement, elements and how four Vietnamese Tử Vi books read them in fortune periods.
Updated 12 Oct 2026 Traditional systems
Knowledge › Vietnam › Folk taboos Checking ages for building a house in 2027 Đinh Mùi: how Kim Lâu, Hoang Ốc and Tam Tai are calculated, and why an age can break one and not the others.
Updated 21 Sept 2026 Culture and belief
Knowledge › Eastern › Vietnamese astrology Thái Bạch is the most inauspicious star in Cửu Diệu, tied to loss and betrayal. A monthly ritual on the 15th lunar day, facing West with 8 lamps, may help.
Updated 17 Jul 2026 Traditional systems
Knowledge › Eastern › Vietnamese astrology The first three lines of a Tử Vi chart give yin yang male female, ngũ hành cục, and bản mệnh nạp âm, and fix the Tử Vi star.
Updated 25 Sept 2026 Traditional systems
Knowledge › Eastern › Vietnamese astrology The Thái Âm star is one of the three auspicious stars in the Nine Luminaries, tied to career and love. A monthly ritual on the 26th lunar day may help.
Updated 2 Sept 2026 Traditional systems
Knowledge › Vietnam › Vietnam's ethnic communities The Cờ Lao live mainly in Hà Giang and speak a Ka Đai language. They worship ancestors, the earth god, and rice spirits.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Bo Y ethnic group includes the Bo Y and Tu Dí subgroups in Hà Giang and Lào Cai, with two language families and distinct worship and festival customs.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Kinh (Viet) are 86.83% of Vietnam's population and speak Vietnamese of the Việt Mường group. Their villages and ancestor worship are covered here.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Tay are Vietnam's largest ethnic minority. They live in northeastern valleys, speak a Tay-Thai language, worship ancestors, and hold long tong festivals.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Hoa (Han) are one of Vietnam's 54 ethnic groups: where they live, their language, ancestor worship customs, and festivals like Tết Nguyên tieu.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Chut people of Vietnam include the May, Ruc, Sach, Arem and Mã Liềng subgroups, living mainly in the mountains of Quảng Bình.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Si La people live in Mường Tè, Lai Châu, speak a Tibeto-Burman language, worship ancestors, and hold the altar rite, New Year and new rice festivals.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Folk belief Hanoi field research shows sao giai han attendees span many ages and jobs, drawn by belief in inauspicious stars and peace of mind.
Updated 27 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The La Hủ live mainly in Mường Tè, Lai Châu, and speak a Tibeto-Burman language. Their ancestor worship and main festivals are described here.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Folk taboos Vietnamese folk taboos for groundbreaking, construction and housewarming cover dates, directions and rituals, rooted in yin-yang and five elements.
Updated 16 Jun 2026 Culture and belief
Knowledge › Vietnam › Life-cycle rites The Hmong 'kéo vợ' custom began to legitimize marriages facing family opposition, yet is often confused with kidnapping or child marriage.
Updated 13 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Ha Nhi live along Vietnam's Chinese and Lao borders in Lai Châu and Lào Cai, speak a Tibeto-Burman language and worship ancestors by household.
Updated 19 Sept 2026 Culture and belief
Knowledge › Eastern › Vietnamese astrology Sao chiếu mệnh 2027 uses the Cửu Diệu system by lunar age. It covers the nine stars, how to look them up, their effects.
Updated 4 Oct 2026 Traditional systems
Knowledge › Vietnam › Vietnam's ethnic communities The Brau are one of Vietnam's 54 ethnic groups, living mainly in Kon Tum. This article covers their language, worship customs, festivals and cultural life.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Ngái are one of Vietnam's 54 ethnic groups, with a very small population living scattered across Quảng Ninh, Hải Phòng, Bắc Giang, Lạng Sơn and Cao Bằng.
Updated 19 Sept 2026 Culture and belief
Dictionary › Stems, branches & zodiac animals The Sixty Jiazi is a cycle of 60 sexagenary combinations of Heavenly Stems and Earthly Branches used to number years, months, days and hours.
Updated 12 Sept 2026 Calendar and astronomy
Knowledge › Vietnam › Vietnam's ethnic communities The Pu Péo number 903 people as of 2019, living in Hà Giang and speaking a Ka Đai language. Learn their worship customs, weddings, funerals and Tet festivals.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Lự people speak a Tày-Thái language and live mainly in Lai Châu, with worship customs and festivals tied to their own calendar.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Ê Đê live mainly in Đắk Lắk, southern Gia Lai, western Phú Yên and Khánh Hòa, speak a Malayo-Polynesian language and follow matrilineal customs.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Folk belief Folk belief is not science, but that does not make it worthless. The right way to read it is as cultural heritage, a symbolic language of community.
Updated 13 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Gia Rai speak a Malayo-Polynesian language and live mainly in Gia Lai, Kon Tum and Đắk Lắk, with a matrilineal society that worships Yang spirits.
Updated 19 Sept 2026 Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communities The Muong ethnic group speaks a Viet-Muong language and lives mainly in Hòa Bình, Thanh Hóa and Phú Thọ, with mo epics, festivals and worship customs.
Updated 19 Sept 2026 Culture and belief
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