-391 DR

* The Ivory Plague strikes Shou Lung, killing the first Emperor Chin of the Hai Dynasty and his household. Only the emperor's sister and his grandson survive. The emperor's sister disguises herself as her brother and rules in his place, assisted by the bureaucracy and good spirits, until the grandson comes of age. She later reveals her true identity and escapes the city, and is not seen again. Her reign was later recognized as the second Emperor Chin of the Hai Dynasty, and her grandnephew as the third Emperor Chin. This begins the custom of allowing female regents, though still referred to as 'Emperor'.
==Appendix==
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