Kamakura and Muromachi: warrior government and its breakdown
This domain tests the institutional logic of warrior government - how the Kamakura bakufu was built, why it fell, and how the Ashikaga shogunate differed.
Kamakura foundations
- 1185: Yoritomo obtains appointment of shugo and jitō; 1192 sei-i taishōgun. The institutions precede the title, so do not date the shogunate's existence to 1192 alone.
- 1221 Jōkyū no ran: the retired emperor Go-Toba is defeated; the bakufu installs the Rokuhara tandai in Kyoto and tightens control of the court.
- 1232 Jōei Shikimoku: 51 articles of pragmatic warrior law, later expanded.
- 1274 and 1281: Mongol invasions repelled, but no confiscated land existed to reward gokenin, deepening their poverty; the 1297 tokusei-rei cancelled debts.
Muromachi
- 1333 the bakufu falls; the Kenmu Restoration (1333–36) fails; Ashikaga Takauji takes Kyoto in 1336 and becomes shogun in 1338. The Nanbokuchō split lasts until 1392.
- The kanrei office rotates among the Hosokawa, Shiba and Hatakeyama; shugo daimyō entrench themselves in provinces; the Kantō kubō governs the east.
- 1467: the Ōnin war opens the era of gekokujō.
Worked example
Question: why did the Kamakura bakufu collapse? Reasoning: the jitō-shiki land base was finite and partible inheritance fragmented it; the Mongol wars produced victory without land for rewards; loyalty therefore eroded, and in 1333 key warriors defected. The answer is structural, not a single battle.
Traps
Confusing shugo (provincial military governor) with jitō (estate manager); treating the Nanbokuchō as having one legitimate court; reducing the 1333 fall to Takauji's ambition alone.