Add 1325 developments: trade routes, India, Tibet, Japan, SE Asia

- Hexi Corridor confirmed as Song territory (direct Silk Road access)
- Complete trade route map: 4 routes, Ilkhanate profits from 3, Mongol Khanate excluded from all
- Song SE Asian colonization: layered system (xuanweisi → trading posts → settler polities → tributaries)
- Japan: silver island, no Mongol invasion, less centralized but economically important
- Korea: Song tributary state
- India: Delhi Sultanate, Chagatai pressure manageable, Song economic penetration beginning
- Tibet: independent, low Song priority
- Mongol Khanate: fully marginalized, future economic semi-colony
- Great Khanate Orthodoxy: Mongolized sect, rejects Constantinople authority
- Little Ice Age effects: accelerates Song southern crisis and SE Asian colonization

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

1 files changed, 110 insertions, 18 deletions

diff --git a/WORLDBUILDING.md b/WORLDBUILDING.md
index 2b8d090..84de750 100644
--- a/WORLDBUILDING.md
+++ b/WORLDBUILDING.md
@@ -129,11 +129,19 @@ Song Huizong's northern campaigns succeed instead of ending in the Jingkang disa
 - **Mongol homeland** (now the imperial periphery, not the center)
 - Northern Manchuria (Jianzhou/Jurchen tribal areas north of Song border)
 - Siberia and Russian Far East (nominally - actually scattered tribes)
-- Very sparse population, poor but strategically positioned
-- **Interesting V3 playable faction** with multiple gameplay paths:
-  - "Mongol Restoration": claim Great Khanate during Great Khanate instability
-  - "Mandate of Heaven": exploit Song internal crisis to invade, recreating the Qing scenario
+- Very sparse population (hundreds of thousands at most), extremely poor
+- **Excluded from ALL major trade routes** — Silk Road passes through Song (Hexi) and Chagatai, not Mongolia
+- Economy: pastoral nomadism + limited Jianzhou agriculture + undeveloped mineral resources (copper, gold, coal, later oil)
+- Analogous to modern Mongolia: geographically large, economically marginal
+- Cannot raid Song (industrial military) or Great Khanate (overwhelming force) or Chagatai (too far, defended)
+- Cannot reach Korea (Song-controlled southern Manchuria blocks access)
+- Little Ice Age hits pastoral economy hard — dzud (white disaster) frequency increases
+- **Long-term trajectory**: mineral wealth attracts Song and Great Khanate economic colonization (foreign capital extracts resources, profits flow out). By V3 era, may be economically semi-colonized.
+- **V3 playable faction** — extreme difficulty, but multiple gameplay paths:
+  - "Mongol Restoration": claim Great Khanate during instability
+  - "Mandate of Heaven": exploit Song internal crisis to invade south, recreating the Qing scenario
   - "Far Eastern Balancer": play Song and Great Khanate against each other
+  - "Mining Modernization": leverage mineral resources for industrialization (requires foreign investment/technology)
 
 ---
 
@@ -356,17 +364,59 @@ Mongol raids into northern France (Flanders, Picardy, ~1240s-1250s) weaken the C
 
 ## Key Trade Routes
 
-### Silk Road (Enhanced)
-Song goods -> Central Asia -> Great Khanate territory -> two routes:
-1. **Northern route**: -> Novgorod -> Hanseatic League -> all of Europe
-2. **Southern route**: -> Black Sea -> Constantinople (Byzantine) -> Mediterranean
-
-### Song Maritime Trade
-- Song's historical maritime trade was already strong
-- With industrialization, likely expanded into:
-  - South China Sea / Southeast Asia (colonization?)
-  - Indian Ocean trade network
-  - Possible competition with European maritime exploration
+### Hexi Corridor: Song-Controlled
+- Western Xia destroyed by Genghis Khan (1227) — territory reverts to vacuum
+- Song fills the vacuum: Hexi Corridor (Gansu) is easily reached and defended from the Chinese heartland, historically Han-populated
+- **Song controls the eastern terminus of the Silk Road** — not just a goods supplier but the gateway manager
+
+### Land Silk Road
+Song (Guanzhong) → Hexi Corridor (Song) → Dunhuang → splits:
+1. **Northern route**: → Chagatai Khanate → Great Khanate → Novgorod → Hanseatic League / Europe
+2. **Southern route**: → Chagatai Khanate → Ilkhanate → Syria → Mediterranean
+
+### Third Land Route (Burma Road, developing ~1325-1350)
+Song (Yunnan) → Burma (Pagan remnant / Song influence) → Bengal / Eastern India → connects to maritime network
+- Still ultimately reaches Ilkhanate territory for westward trade (Persian Gulf / Red Sea)
+- Bypasses Chagatai's overland middleman cut
+- Under development in this period, not yet fully operational
+
+### Maritime Silk Road
+Song → South China Sea → Malacca Strait → Indian Ocean → two endpoints:
+1. **Persian Gulf** (Hormuz → Ilkhanate): major trade terminus
+2. **Red Sea** (Aden → Egypt/Ilkhanate): connects to Mediterranean via Cairo
+- **Ilkhanate profits from BOTH land and sea routes** — sits on two of three trade paths
+- Song Southeast Asian colonies serve as waypoints and resource extraction sites
+
+### Song Maritime Trade and Southeast Asian Colonization (~1325)
+Layered presence, from most to least control:
+1. **Xuanweisi (宣慰司, pacification commissions)**: Direct administration. Champa coast, parts of Vietnam.
+2. **Trading posts (商埠)**: Song merchant communities + small garrisons. Srivijaya (Palembang), Malacca, north Java coast. Similar to Portuguese Goa/Malacca model.
+3. **Chinese settler polities**: Self-organized miner/farmer republics in Borneo, Sumatra interior. Precursors to historical Lanfang Republic (1777) but centuries earlier. Song gives nominal recognition without direct governance.
+4. **Tributary/trade partners**: Siam, Khmer (Cambodia), Pagan remnants. Not colonies, just trade relationships.
+- Little Ice Age drives development: SE Asian tropical agriculture unaffected by cooling, attracts Song migrants fleeing southern economic crisis
+- Long-term: when Little Ice Age ends + commercial agriculture develops, SE Asia experiences agricultural economic boom
+
+### Japan: Silver Island
+- No Mongol invasions (1274, 1281) → less national cohesion, Kamakura shogunate's legitimacy basis differs
+- Japanese gold/silver output (Iwami Ginzan etc.) is globally critical — **without New World silver, Japan is the world's primary precious metal supplier**
+- Song merchants active in Hakata, Hirado; Japan integrated into Song trade network
+- But no external threat → less motivation for centralization or technology adoption
+- V3 era: pre-industrial but wealthy from silver, capable of rapid industrialization if stimulated (Black Ships equivalent scenario)
+
+### Korea (Goryeo): Song Tributary
+- Mongol Khanate cannot reach Korea (Song controls southern Manchuria, blocks land approach)
+- Korea defaults to traditional tributary relationship with Chinese dynasty (Song)
+- Purchases Song industrial goods, maintains internal autonomy
+- Culturally influenced by Song but politically independent
+
+### Trade Route Summary
+| Route | Song share | Middlemen | Endpoint |
+|---|---|---|---|
+| Northern Silk Road | Hexi Corridor | Chagatai → Great Khanate | Europe (Novgorod) |
+| Southern Silk Road | Hexi Corridor | Chagatai → Ilkhanate | Mediterranean |
+| Burma Road | Yunnan | Burma → India | Ilkhanate (Persian Gulf/Red Sea) |
+| Maritime | SE Asian colonies | Indian Ocean | Ilkhanate (Hormuz/Aden) |
+| **Mongol Khanate** | **None** | **None** | **Excluded from all routes** |
 
 ---
 
@@ -390,13 +440,55 @@ Song goods -> Central Asia -> Great Khanate territory -> two routes:
 
 ---
 
+## India (~1300-1325)
+
+### Delhi Sultanate (Dominant North Indian Power)
+- Khalji dynasty (1290-1320), then Tughluq dynasty (1320+)
+- Alauddin Khalji (1296-1316): peak power, repelled historical Mongol invasions, conquered Deccan
+- In this timeline: Chagatai Khanate (with fire weapons) poses greater threat from the northwest via Afghanistan
+- But Delhi can acquire fire weapons through Song maritime trade and Burma road → threat is manageable
+- India's production capacity far exceeds Chagatai's despite being agricultural/pre-industrial
+- **Emerging threat**: Song industrial textiles entering Indian coastal markets via maritime trade
+  - India is the world's largest textile producer
+  - Song cheap factory-made cloth will undercut Indian handloom textiles
+  - Effect similar to British Industrial Revolution's destruction of Indian industry — but 500 years earlier
+  - By ~1375-1400: serious economic disruption in Indian textile-producing regions
+
+### South India
+- Pandya, Hoysala, Kakatiya kingdoms being conquered by Delhi
+- Vijayanagara Empire will form ~1336 as resistance to Delhi
+- Coastal cities increasingly integrated into Song maritime trade network
+
+### India's Long-term Role
+- Sits on the Burma Road (third Silk Road) between Song and the Ilkhanate
+- Major market for Song industrial goods AND supplier of spices, gems, cotton
+- Politically fragmented → vulnerable to Song economic penetration
+- Not colonized (too large, too populated) but economically dependent on Song trade
+
+---
+
+## Tibet (~1300)
+
+- Historical Sakya-Mongol alliance (1240s) depended on Yuan Dynasty patronage — no Yuan in this timeline
+- Tibet is **effectively independent**, fragmented among Buddhist monastic schools/sects
+- Song does not prioritize Tibet: high altitude, low economic value, difficult logistics
+- Song expansion priorities: Southeast Asia (rich) > Burma Road (strategic) > Tibet (not urgent)
+- Tibet may come under loose Song cultural/religious influence over time
+- Long-term: Song may eventually assert control to prevent Chagatai or Mongol Khanate from using it as staging ground
+
+---
+
 ## Religion in This World
 
 ### Eastern Orthodoxy
 - Becomes the dominant religion of the Great Khanate (Yeke Ulus)
-- Mongol ruling class likely converts to Orthodoxy (similar to Bulgars converting after conquering Slavs)
-- Reasoning: ruling a majority Orthodox population, deep integration, Orthodox Church provides administrative network
-- Constantinople remains the spiritual center (under Byzantine vassal state)
+- Great Khan baptized ~1325-1350, but **rejects Constantinople's religious authority**
+- Develops a distinctive **Mongolized Orthodox sect**: fuses Orthodox Christian theology with Mongol/Tengri cultural traditions
+  - Possibly independent patriarchate on the Volga, refusing Constantinople's primacy
+  - Parallels: Ethiopian Orthodox Church (independent from broader Orthodoxy), or Moscow's "Third Rome" doctrine but earlier and more radical
+  - Mongol shamanic elements incorporated into ritual and imagery
+- Constantinople remains the spiritual center for Byzantine/Balkan Orthodoxy only
+- Creates a religious split within the Orthodox world: Volga Orthodoxy vs. Constantinople Orthodoxy
 
 ### Catholicism
 - Survives in: Western Europe (Germany, France, England, Iberia, Italy, Scandinavia)