Early Chinese Coin Finds Database
A searchable, mapped record of pre-Qin to early Han coin discoveries across China — sites, contexts, typology, mint towns, and museum specimens, presented bilingually in English and Chinese. No separate backend: every page queries Supabase directly.
660,417
Coins recorded
1,496
Find sites
6,572
Find records
125
Mint towns
71
Coin types
1,161
Sources
Search, Browse, Filter
Every find site is searchable by name, province, coin type, inscription, or site code, with live facet filters and a results map that clusters by count.
Find Site Pages
Location, a mint-origins map connecting the site to every mint it received coins from, and a tabbed breakdown of excavation contexts, individual finds, and citations.
Mint Towns
Each mint town has its own page, with coordinates on a map, an issued-coin distribution map filterable by coin type, and citations.
Coin Typology
Coin types can be viewed from a navigable hierarchy tree or an expandable list.
Coin Type Pages
Obverse/reverse images, every issuing state and mint, attested inscriptions, a coin-issue catalogue, and a referenceable hierarchy tree.
Three Ways to See the Same Geography
Find Site, Mint Town, and Museum Collections all share one map engine with Points / Density / Compare display modes, filterable by coin type or mint. Click-to-reveal explanations on every non-obvious control allows newcomers to more easily access this tool.
Preset map filters. Explore the most productive visualizations with ease — five hand-picked, already-filtered views deep-link straight into the map with that exact coin-type, mint, or comparison already applied.
Mobile Views
The desktop nav collapses into a hamburger menu, full-bleed map pages hide the footer so the map gets the whole viewport, and floating filter panels become collapsible drawers instead of just shrinking in place.
Database
Stack
Next.js 16
Framework
React 19
UI
TypeScript
Language
Tailwind CSS 4
Styling
Supabase (Postgres)
Database
Leaflet
Maps
Vercel
Hosting
Custom EN/ZH dictionary
i18n