# Karnataka · 1799 ⇄ 1956 (3D Ekikarana Atlas)

> Minimalist interactive 3D relief map illustrating how Kannada-speaking lands were partitioned into six separate administrations on May 4, 1799 after the Fourth Anglo-Mysore War at Srirangapatna, and reunited 157 years later on November 1, 1956 (Karnataka Ekikarana).

## Links
- [Live 3D Atlas](https://h3manth.com/fun/karnataka/): Interactive Three.js + HTML5 Canvas relief sculpture
- [A2A Agent Card](https://h3manth.com/fun/karnataka/agent-card.json): Machine-readable Agent Card manifest
- [Playground Index](https://h3manth.com/fun/): All interactive experiments on h3manth.com
- [Source Repository](https://github.com/hemanth/fun/tree/master/karnataka): Source code on GitHub
- [Historical Narration Reference](https://www.instagram.com/p/DfM1TV0uOqI/): Historian & Archaeologist Dharmendra Kumar (@abhays_compass)
- [Author](https://h3manth.com): Hemanth HM

## Historical Context (1799 Partition → 1956 Reunification)
On May 4, 1799, following the fall of Tipu Sultan in the Fourth Anglo-Mysore War at Srirangapatna (`12.418°N, 76.694°E`), the British East India Company and its allies (the Nizam of Hyderabad and the Maratha Confederacy) partitioned Kannada-speaking regions across six distinct administrations:

1. **Bombay Karnataka (`ಬಾಂಬೆ ಕರ್ನಾಟಕ`, `#F3B888`)** — Belagavi, Vijayapura, Bagalkote, Dharwad, Gadag, and Haveri (including Kittur and Hubballi), ceded to the Marathas and later absorbed into the Bombay Presidency.
2. **Hyderabad Karnataka (`ಹೈದರಾಬಾದ್ ಕರ್ನಾಟಕ`, `#8CCEC8`)** — Bidar, Kalaburagi (Gulbarga), Yadgir, Raichur, and Koppal, placed under the Nizam of Hyderabad.
3. **Mysore State (`ಮೈಸೂರು ರಾಜ್ಯ`, `#B6D3A8`)** — Inland southern and central districts from Chamarajanagara and Mysuru up to Chitradurga and Harihar (Davanagere), restored to the Wadiyar dynasty under Subsidiary Alliance.
4. **North Kanara (`ಉತ್ತರ ಕನ್ನಡ`, `#EED382`)** — Northern half of the Karavali coast, attached to Madras Presidency and transferred in 1862 to Bombay Presidency.
5. **South Kanara (`ದಕ್ಷಿಣ ಕನ್ನಡ ಮತ್ತು ಉಡುಪಿ`, `#EFA39D`)** — Southern half of the Karavali coast, administered under the Madras Presidency.
6. **Direct British Administration (`ಕೊಡಗು ಮತ್ತು ಬಳ್ಳಾರಿ`, `#9DC0E6`)** — Kodagu (Coorg Province) and Ballari governed under direct British rule.

After 157 years of administrative separation, the grassroots *Karnataka Ekikarana* movement reunited these regions on **November 1, 1956** under the States Reorganisation Act (officially renamed *Karnataka* on November 1, 1973).

## Agent & WebMCP Interface
When visited by a WebMCP-enabled browser or autonomous agent (`navigator.modelContext` or `window.karnatakaAtlas`), this page registers three interactive tools:
- `set_karnataka_map_era({ era: "1799" | "1956" | "toggle" })`: Splits or reunites the 3D relief map and returns the active state.
- `list_1799_administrations()`: Returns structured JSON for all six post-1799 administrations and their constituent districts.
- `lookup_karnataka_district({ district })`: Queries any of the 30 districts in English or Kannada and returns its 1799 administration, coordinates, and 1956 reunification metadata.

## Tech Stack
- Three.js (`ExtrudeGeometry` over 30 quantized district polygons with Western Ghats elevation relief and procedural ceramic micro-grain bump maps)
- HTML5 2D `<canvas>` HUD overlay with Srirangapatna shockwave/reunion ripples and collision-relaxed bilingual Kannada-English labels
- Zero external runtime dependencies; 100% static ES modules