Kanki 3 (寛喜三年)
Timeline of 1231
Other Events of 1231
- The Mongols first invade Korea; it does not fall to Mongol control until 1259.
- The three sets or types of duties of the shugo are formally incorporated into shogunate law, as the taibon sankajo, or Three Regulations for Great Crimes.
| Previous Year 1230 |
1231 | Following Year 1232 |