Knowledge › Eastern › I ChingHa Do arranges birth and completion numbers by direction and element, while Lac Thu is a 3x3 square where every row, column and diagonal sums to 15.
Updated 25 Sept 2026Traditional systems
Knowledge › Vietnam › Folk divinationThe Hà Nhì read pig liver at the start of the year to predict fortune, harvest and health, a spiritual custom tied to farming life.
Updated 9 Jul 2026Traditional systems
Knowledge › Vietnam › Vietnam's ethnic communitiesThe Ha Nhi live along Vietnam's Chinese and Lao borders in Lai Chau and Lao Cai, speak a Tibeto-Burman language and worship ancestors by household.
Updated 19 Sept 2026Culture and belief
Knowledge › Vietnam › Vietnam's ethnic communitiesThe La Ha people live in Yen Bai and Son La, with a 2019 population of 10,157. Their housing, marriage and worship customs are covered here.
Updated 19 Sept 2026Culture and belief
Knowledge › Eastern › I ChingHexagram Hoa Phong Dinh, No. 50 in the I Ching, is the three-legged ritual cauldron that cooks the new after the old is discarded.
Updated 26 Sept 2026Traditional systems
Knowledge › Eastern › Feng shuiThe He Tu and Luo Shu are ancient diagrams behind feng shui li qi, explaining the 4-9-2 magic square and the nine palaces of the Later Heaven ba gua.
Updated 25 Sept 2026Traditional systems
Knowledge › Vietnam › Traditional festivalsCao Dai Founding Day marks the 1926 Hoang khai Dai dao Tam Ky Pho Do, held around the tenth lunar month full moon at Tay Ninh Holy See.
Updated 27 Sept 2026Culture and belief
Knowledge › Vietnam › Traditional festivalsHa Nam's Doi Son Tich Dien Festival runs from the 5th to the 7th day of the first lunar month, reenacting King Le Dai Hanh's 987 plowing ritual.
Updated 13 Sept 2026Culture and belief
Knowledge › Vietnam › Vietnamese commemorative daysCapital Liberation Day on 10 October 1954 saw Vietnamese forces take over Hanoi from French troops under the Geneva Accords.
Updated 25 Sept 2026Culture and belief
Knowledge › Vietnam › Traditional festivalsKhau Vai Love Market in Ha Giang meets once a year, rooted in the legend of Ba and Ut and honored as national intangible heritage.
Updated 3 Aug 2026Culture and belief
Knowledge › Vietnam › Traditional craftsNgũ Xã bronze casting village in Hanoi has over 400 years of history, known for sophisticated techniques and artworks of Thăng Long spirit.
Updated 24 Aug 2026Culture and belief
Knowledge › Vietnam › Traditional dressThe traditional costumes of the Lo Lo people in Ha Giang are a brocade masterpiece, with hand embroidery and vivid colors on pants, shirts, scarves and hats.
Updated 26 Jul 2026Culture and belief
Knowledge › Vietnam › Ethnic minority customsDế Khù Chà, the rainy-season Tết of the Hà Nhì: soul-calling rites, glutinous rice cakes, swings and prayers for rain; each village picks its own day.
Updated 12 Oct 2026Culture and belief
Knowledge › Vietnam › Tet and seasonal ritesKhu Su Cha, the Ha Nhi New Rice Festival in Muong Nhe, Dien Bien, thanks ancestors with floating cakes, pig liver divination and glutinous rice pounding.
Updated 29 Aug 2026Culture and belief
Knowledge › Vietnam › Historical figuresOng Hoang Bay, a Le Dynasty general, is worshipped at Bao Ha Temple in Lao Cai, blending hero veneration with Mother Goddess beliefs.
Updated 13 Sept 2026Culture and belief
Knowledge › Vietnam › Traditional festivalsThe Khai Ha festival is the largest folk festival of the Muong people in Hoa Binh, held in the first lunar month to pray for good harvests.
Updated 19 Jul 2026Culture and belief
Knowledge › Eastern › Vietnamese astrologyExplore Giản Hạ Thủy, water under the ravine, one of 30 nạp âm of Lục Thập Hoa Giáp, its Five Elements meaning and applications.
Updated 8 Jul 2026Traditional systems
Knowledge › Eastern › Vietnamese astrologySơn Hạ Hỏa in the Sexagenary Cycle covers Bính Thân and Đinh Dậu, its Fire element traits, and the colors that support balance.
Updated 22 Aug 2026Traditional systems
Knowledge › Eastern › PsychologyDutch research links weddings on special dates to an 18 to 36 percent higher divorce risk, mostly from couples' traits, not the date.
Updated 27 Sept 2026
Knowledge › Vietnam › Folk beliefThe shrine of Princess Hoang Phuong on Vu Trong Phung Street stayed after negotiation between community, authorities and a business.
Updated 28 Sept 2026Culture and belief
Knowledge › Eastern › Vietnamese astrologyThiên Hà Thủy is the Na Yin for Bính Ngọ and Đinh Mùi years, belonging to the Water element, symbolizing vastness, purity and flexibility.
Updated 22 Aug 2026Traditional systems
Knowledge › Vietnam › Tet and seasonal ritesTet Ha Nguyen on the 15th day of the tenth lunar month is one of Vietnam's four major traditional festivals, a time to thank heaven and earth.
Updated 13 Aug 2026Culture and belief
Knowledge › Vietnam › Folk beliefTruong Thi Thuy Ha's 2016 study found Hanoi apartment buyers consult feng shui when choosing and arranging a home, seeking spiritual security.
Updated 27 Sept 2026Culture and belief
Knowledge › Vietnam › Ethnic minority customsThe Khơ Mú new rice celebration in Than Uyên, Lai Châu gives thanks to ancestors and the land spirit after harvest, with singing to welcome the new rice.
Updated 27 Sept 2026Culture and belief
Knowledge › Vietnam › Folk beliefBach Ma Temple in Hanoi guards the East of Thang Long's Four Guardian Temples and worships Long Do, the city's tutelary god.
Updated 22 Sept 2026Culture and belief
Knowledge › Western › Philosophy of scienceThe oldest personal chart is a Babylonian tablet from around the 5th century BCE. This study follows astrology from Mesopotamian omens to Greece and Persia.
Updated 27 Sept 2026
Knowledge › Eastern › Feng shuiThượng sơn hạ thủy is a Huyền Không phi tinh configuration where mountain and water stars swap palaces, which classical texts treat as inauspicious.
Updated 25 Sept 2026Traditional systems
Knowledge › Vietnam › Traditional festivalsThe Tien Cong Festival on Ha Nam Island, Quang Ninh runs to the 7th day of the first lunar month, with rites of carrying the elderly.
Updated 27 Sept 2026Culture and belief
Knowledge › Eastern › I ChingThe nine palaces are the nine cells of the Luo Shu, a 3x3 square whose every line totals 15, and the grid used by Huyền Không and Kỳ Môn.
Updated 12 Oct 2026Traditional systems
Knowledge › Vietnam › Folk beliefHanoi 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 2026Culture and belief
Knowledge › Vietnam › Traditional festivalsThe Cho Cui Temple Festival in Nghi Xuan, Ha Tinh honours Saint Hoang Muoi and the Three Holy Mothers, and differs from Nghe An's Ong Hoang Muoi Temple.
Updated 27 Sept 2026Culture and belief
Knowledge › Vietnam › Traditional festivalsThe Hanoi Autumn Festival 2026 runs 16-18 October at Thong Nhat Park, with 9 spaces covering heritage, craft villages, cuisine and international exchange.
Updated 25 Sept 2026Culture and belief
Knowledge › Vietnam › Traditional foodCom Lang Vong is a Hanoi autumn specialty made from young sticky rice, tied to the traditional craft of Vong village in Cau Giay district.
Updated 28 Jun 2026Culture and belief
Knowledge › Vietnam › Traditional festivalsGiong Festival at Soc Temple and Phu Dong Temple in Hanoi honors Saint Giong, with its rituals and UNESCO heritage status.
Updated 13 Sept 2026Culture and belief
Knowledge › Vietnam › Traditional festivalsDiscover the distinctive features of Huong Pagoda Festival: the pilgrimage journey through Yen Stream, the cave pagoda complex and offering rituals.
Updated 28 Jun 2026Culture and belief
Knowledge › Eastern › I ChingHexagram 31, Trạch Sơn Hàm, opens the I Ching's Lower Canon and traces mutual attraction through six lines, from the big toe to the tongue.
Updated 25 Sept 2026Traditional systems
Knowledge › Vietnam › Tet customsHow did Hanoians celebrate Tết from the early 20th century to today? From Hàng Lược flower market and offering trays to ration coupons and the market now.
Updated 12 Oct 2026Culture and belief
Knowledge › Vietnam › RegionsHanoi character in daily life shows in forms of address, inviting, hosting guests, and a reserve newcomers often misread as coldness.
Updated 22 Sept 2026Culture and belief
Knowledge › Eastern › PhysiognomyThe Lower Mansion covers the jawbone and chin in the Six Mansions system, reflecting later years, endurance and stability in traditional physiognomy.
Updated 19 Jun 2026Traditional systems
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Open dataAll 64 hexagrams in King Wen order, with Vietnamese and Han names, upper and lower trigrams, and the image.
64 rowsVersion 1.1.1