Eastern Jin, 317–420 CE
Autocracy · Monarchy · East Asia · Late Antiquity era
A southern émigré dynasty of aristocratic clans holding the Yangtze while the north fractured into the Sixteen Kingdoms.
After the loss of the north to non-Chinese states, the Jin court re-established itself at Jiankang on the Yangtze, dependent on a handful of powerful aristocratic clans whose rivalries dominated a weak throne. Émigré northern elites and southern magnates competed for land and office, and military strongmen periodically overshadowed the emperor. The dynasty preserved Han institutions and culture in the south while the Sixteen Kingdoms churned across the north.
Dominant patterns
- Imperial Decline
- Succession Crisis
- Institutional Decay
- External Expansion
- Revolutionary Risk
Political-science factor profile
Each factor 0–100; higher = stronger authoritarian / crisis pole (except institutional stability, where higher = stronger institutions).
| Centralization of Power | 42 |
| Media Control | 48 |
| Repression | 40 |
| Nationalism | 55 |
| Militarization | 55 |
| Economic Stress | 55 |
| External Conflict | 72 |
| Cult of Personality | 55 |
| Elite Fragmentation | 82 |
| Institutions | 40 |
| Social Polarization | 55 |
| Corruption & Patrimonialism | 60 |
| Ideological Mobilization | 55 |
| External Sovereignty | 80 |
Economy & society
| GDP per capita | $700 (intl-$) |
| Population | 18.0M people |
| Share of world population | 9% |
| Territory | ~1.5M km² |
| Capital population | ~200k |
Closest historical twins
The country-eras whose structural profile most resembles Eastern Jin 317–420 CE, by similarity score (0–100).
- Western Zhou, 850–771 BCE – similarity 93/100 · shared: Imperial Decline, Succession Crisis, Institutional Decay, External Expansion, Revolutionary Risk
- Visigothic Kingdom, 600–711 CE – similarity 93/100 · shared: Imperial Decline, Succession Crisis, Institutional Decay, External Expansion, Revolutionary Risk
- Seleucid Empire, 150–63 BCE – similarity 87/100 · shared: Imperial Decline, Succession Crisis, Institutional Decay, External Expansion, Revolutionary Risk
- Safavid Persia, 1666–1722 CE – similarity 87/100 · shared: Imperial Decline, Succession Crisis, Institutional Decay, Revolutionary Risk
- Ottoman Empire, 1730–1774 CE – similarity 86/100 · shared: Imperial Decline, Succession Crisis, Institutional Decay, External Expansion
- Ottoman Empire, 1789–1808 – similarity 86/100 · shared: Imperial Decline, Succession Crisis, Institutional Decay, External Expansion
- Kingdom of Israel, 850–800 BCE – similarity 85/100 · shared: Imperial Decline, Succession Crisis, Institutional Decay, External Expansion, Revolutionary Risk
- Holy Roman Empire, 1220–1250 CE – similarity 85/100 · shared: Imperial Decline, Succession Crisis, Institutional Decay, External Expansion
What followed
- A weak throne dominated by great clans.
- Permanent loss of the northern heartland.