Segments of the three Lo Ban rules

What the columns mean

id (string)

Stable row identifier, unchanged across versions

loai_thuoc (string)

Ruler type code

ten_thuoc (string)

Ruler name with cycle length

chu_ky_mm (float)

Length of one ruler cycle, in millimeters

dung_de (string)

Type of dimension this ruler is used to measure

thu_tu_cung (int)

Position of the palace in the cycle, starting from 1

cung (string)

Major palace name

cung_han (string)

Major palace name in Han characters

tot_xau (string)

tot or xau

tu_mm (float)

Start of the palace interval within a cycle, in millimeters

den_mm (float)

End of the palace interval within a cycle, in millimeters

y_nghia (string)

Folk meaning associated with the palace

cung_nho (string)

Small palaces inside, separated by semicolons; empty when the source has not been finalized

nguon (string)

Kind of source for this row, one or more parts separated by semicolons, each being tinh-toan (computed by the engine), quy-uoc-truyen-thong, quy-uoc-he-hien-dai (convention of a tradition or of a modern system), van-ban (with the work after a colon) or bien-tap (with details); static details are also in the metadata nguon_chi_tiet, and the two largest datasets give them only there; which column belongs to which part is given by each column's loai_bang_chung in the metadata

ghi_chu (string)

Where the schools disagree on this row; empty when they do not

Release

Data release ID

2026.10.27-cd6fca71 · manifest.json

Dataset version

1.2.0

Dataset last changed

2026-10-06The date in the release ID is when the most recently changed dataset of the whole release changed. This dataset has not changed since the date above, so it keeps its version and is still part of this release.

Generated

2026-10-27 08:07 UTC

Rows

26 rows, 15 columns

Schema hash

e4924f5001a286bf…Copysha256 of each column's name and type

Download this exact release

• thuoc-lo-ban.csv · 9.9 KB · sha256 d1f0e358950cf734…Copy
• thuoc-lo-ban.json · 16.6 KB · sha256 3da7007d369a1fb4…Copy
• thuoc-lo-ban.meta.json · 20.1 KB · sha256 3f4dd800a07b0034…Copy

The “CSV for Excel” button at the top serves a copy with a BOM, so its hash differs from the CSV here.

Changes

Version 1.2.0 (2026-10-06), type data: The y_nghia column is rewritten for all 26 sectors: each row now states whether the sector is in the good or bad group on the Luban rule in common use and what the Chinese character of its name means, replacing wording such as "a bad sector, linked with illness and loss". Sector names, millimetre ranges, the tot_xau column and the row count are unchanged.

Changelog of every dataset (CHANGELOG on GitHub)

Method

This dataset goes through no calendar model.

Engine version of the release: 2.0.0.

Verification

Evidence types in this dataset, and how far each can be checked:

• C. Convention of a tradition or of a modern system: correct by that convention, neither true nor false in an empirical sense; where schools differ is recorded in the diem-bat-dong-giua-cac-phai dataset.

Provenance

A lookup table copied from the source texts or systems named in nguon_thu_tich and the nguon column.

• C. Convention of a tradition or of a modern system: loai_thuoc, ten_thuoc, chu_ky_mm, dung_de, thu_tu_cung, cung, cung_han, tot_xau, tu_mm, den_mm, y_nghia, cung_nho

Cite this dataset

Nhật Nguyệt (2026). Segments of the three Lo Ban rules (version 1.2.0, data release 2026.10.27-cd6fca71) [Data set]. CC BY 4.0. DOI 10.5281/zenodo.23009396. https://nhatnguyet.org/en/bang/thuoc-lo-banCopy

The concept DOI always resolves to the latest release. Zenodo mints a DOI for each release after it is published, and the next release records it in the manifest.

Licence and limitations

Released under CC BY 4.0: reuse commercially, adapt freely, attribution is all that is asked.

Source: Nhật Nguyệt (nhatnguyet.org), CC BY 4.0

This dataset records cultural and calendrical conventions, not scientific claims. It is suitable for cultural research, NLP, and calendar applications. It is not intended for predicting events, evaluating people, or making decisions that affect anyone.

Source texts: Lỗ Ban Kinh.

Other reference tables

• The ten heavenly stems
• Compatibility matrix of the 12 earthly branches
• The twelve earthly branches
• The twelve day officers (Thap Nhi Truc)
• The 22 Major Arcana of the Tarot
• The 24 solar terms
• The 56 Minor Arcana cards
• Sexagenary cycle table (60 Hoa Giap)
• The 64 hexagrams of the I Ching
• The nine presiding stars (Cuu Dieu)
• Zodiac sign boundaries year by year, 1950 to 2050
• Retrieval evaluation set for Vietnamese folk belief and calendar
• Letter to number tables, Pythagorean and Chaldean
• Kua number and Bat Trach directions
• Where the schools disagree
• Auspicious hours across the sixty-day stem-branch cycle
• The sixty stem-branch pairs crossed: sounds, harmony, clash and element relation
• Questions and answers on Vietnamese offering rites
• Things to avoid and practical notes for Vietnamese offering rites
• Vietnamese festivals mapped to solar dates, 2026 to 2030
• Festivals and folk beliefs of the 54 ethnic groups of Vietnam
• Vietnamese festivals, seasonal feasts and public holidays
• Vietnamese ritual offerings
• Vietnamese lunisolar calendar, 1900 to 2100
• Types of Vietnamese offering rites
• Start moments of the 24 solar terms, 1900 to 2100
• Folk inauspicious days mapped onto solar dates, 2026 to 2035
• Vietnamese offering procedures
• Daily hexagram by the Gua Qi method, 1900 to 2100
• Tam Tai, Kim Lau and Hoang Oc by birth year and year in question
• Order of the sixty Gua Qi hexagrams
• Vietnamese offering prayers (văn cúng)

See every reference table