| --- |
| license: other |
| license_name: chgis-tgaz |
| license_link: https://chgis.fairbank.fas.harvard.edu/ |
| pretty_name: TGAZ (Temporal Gazetteer) SQLite |
| language: |
| - zh |
| - en |
| - bo |
| tags: |
| - history |
| - gazetteer |
| - china |
| - historical-gis |
| - sqlite |
| size_categories: |
| - 10K<n<100K |
| --- |
| |
| # TGAZ-SQLite |
|
|
| The **Temporal Gazetteer (TGAZ)** of the China Historical GIS (CHGIS) as one SQLite file. |
| It has 82,117 historical placenames from 763 BCE to 1911 CE, with 245,042 spellings |
| (simplified and traditional Chinese, pinyin, Tibetan), jurisdiction links over time, |
| and historical notes. |
|
|
| ## Files |
|
|
| | File | What it is | |
| |---|---| |
| | `tgaz_20260325.zip` | the database (`tgaz.db`, 228 MB unzipped, 62 MB zipped) | |
| | `latest.json` | the current release: file name, SHA-256 checksums, download URL | |
|
|
| ## Download |
|
|
| The easiest way is the `setup` command of the |
| [tgaz-sqlite skill](https://github.com/kltng/humanities-skills/tree/main/tgaz-sqlite): |
|
|
| ```bash |
| python3 scripts/query_tgaz.py setup # downloads, checks the checksum, unzips |
| ``` |
|
|
| It puts the file at `~/.local/share/sino-authorities/tgaz.db`. By hand: |
|
|
| ```bash |
| curl -L -o tgaz.zip https://huggingface.co/datasets/kltng/tgaz-sqlite/resolve/main/tgaz_20260325.zip |
| unzip tgaz.zip # gives tgaz.db |
| ``` |
|
|
| ## Source and credit |
|
|
| - Data: [China Historical GIS](https://chgis.fairbank.fas.harvard.edu/) (Harvard University and |
| Fudan University), with records from the Tibetan Buddhist Resource Center (3,587) and the |
| Historical Gazetteer of Russia (761). |
| - Converted from the MySQL dump in |
| [fccs-dci/containerized_tgaz](https://github.com/fccs-dci/containerized_tgaz) with the scripts in |
| [kltng/tgaz-sqlite](https://github.com/kltng/tgaz-sqlite). The live API is at |
| https://chgis.hudci.org/tgw/. |
| - The upstream data has no explicit licence file. Credit CHGIS when you use it, and check the |
| CHGIS site for terms of use. The conversion is by Kwok-leong Tang. |
|
|
| ## Known data problems |
|
|
| - About 6,000 rows (mostly POLYGON records, `hvd_90xxx` IDs) have longitude `0.00000`. On a map |
| they land in Africa. The skill's `--good-coords` flag drops them. |
| - 251 rows end before they begin (e.g. `hvd_112536`). |
| - `mv_pn_srch.parent_vn` is the earliest parent, not the parent in a given year. Use `part_of` |
| for a given year. |
|
|
