An Dương Vương is the figure recorded in old histories as the king of Âu Lạc, who founded the state after defeating the eighteenth Hùng Vương. According to Trần Trọng Kim's Việt Nam sử lược (Outline of Vietnamese History), he proclaimed himself king in the Giáp Thìn year (257 BCE) and built Loa thành in the Bính Ngọ year (255 BCE); the Đại Việt sử ký toàn thư (Complete Book of the Historical Records of Đại Việt) also records that he sat on the throne for fifty years. These dates come from the old histories and are not yet verified milestones.
The Cổ Loa Festival opens on the 6th day of the first lunar month at the Upper Temple in Đông Anh, Hanoi, honoring An Dương Vương with rituals and folk games.
Worship in Nghệ An through three studies: ancestral rites at lineage halls, the three temples of Kim Lũy village, and đền Cuông, with lunar festival dates.
Đại Việt sử ký toàn thư opens with the Hồng Bàng era: Kinh Dương Vương, named Lộc Tục, and the realm of Xích Quỷ. The Hán text set beside later histories.
Thủy Hỏa Ký Tế (No. 63) is the only hexagram with all six lines in correct position and paired. It teaches small success and a good start but chaotic end.
Explore the Sun Star (Thái Dương) in the Nine Luminaries: why it is considered auspicious, its impact on career and wealth, and the proper ritual to honor it.
Decode Thái Dương (Sun) star in Purple Star Astrology: origins, personality, dignity meanings, and readings for the Life, Career, and Marriage palaces.
Hiệp Kỷ Biện Phương Thư records Nguyệt Kỵ and rejects Dương Công kỵ nhật. An analysis of the original Chinese text, separating old rules from folk beliefs.
Discover Aries (Mar 21 - Apr 19): a bold, straightforward personality, passionate love style, ideal careers, and which signs pair best or worst with Aries.
Business compatibility by age compares partners' birth years via Nạp Âm, Tứ Hóa and Tử Vi palace positions, covering principles, schools and practical use.
Hám Long Kinh and Nghi Long Kinh, traditionally attributed to Dương Quân Tùng: how they read dragon veins, the nine stars, and true versus branch dragons.
The "ngu mai" custom of the Tho people in Nghệ An lets young men and women talk overnight at festivals, strictly governed by customary law before marriage.
Phù Ức is a balancing principle in BaZi that uses supportive deities when the Day Master is weak and restraining deities when it is strong to achieve harmony.
Chairman of the Board of Directors of Truong Hai Group (THACO), a pioneering entrepreneur in the field of automobile manufacturing and assembly in Vietnam
Every solar day from 1900 to 2100 with its ruling hexagram under the Gua Qi method (six days seven parts), the line ruling the day, the position in the sixty-hexagram cycle, the winter solstice anchor and the minutes elapsed since it, the solar term and the cardinal hexagram line for that term. Enough to recompute every row independently.
The sixty hexagrams that take turns ruling the days under the Gua Qi method, in order from Inner Truth at the winter solstice, with their solar month, their rank (duke, sovereign, marquis, grand master, minister) and when each takes over counted from the solstice. The lookup table for the que-ngay-quai-khi-1900-2100 dataset.