820年

820年 — 中国: February — Emperor Xianzong of Tang dies, probably from being poisoned by eunuchs; his son Li Heng succeeds him and becomes Emperor Muzong of Tang

事件4条。正文照录原始年表原文，来源见来源与许可。上下灰色行是前后2年的脉络。

韩国南北国时代 698–918	中国唐朝 618–907	日本平安时代 794–1185	美国
本年无收录事件 818발해 선왕 즉위 822신라에서 김헌창의 난이 일어남	February — Emperor Xianzong of Tang dies, probably from being poisoned by eunuchs; his son Li Heng succeeds him and becomes Emperor Muzong of TangEN Dương Thanh rebels and seizes Đại LaEN February — Xianzong died, possibly after being poisoned by one of his eunuch officers.EN February — Xianzong's son Emperor Muzong of Tang became emperor of the Tang dynasty.EN 819全國節度使服從。藩鎮割據局面暫告結束。 819Tibetan Empire attacks Qing Prefecture 821Princess Taihe, 17th daughter of Emperor Xianzong of Tang, marries Kün tengride ülüg bulmïsh alp küchlüg bilge of the Uyghur Khaganate 821Tibetan Empire attacks Tang but are driven off by the governor of Yan Prefecture 821Tang and the Tibetan Empire sign a treaty of non-aggression with the Tang recognizing Tibet's ownership of the Western Regions as well as the Longyou and Hexi regions in what is now Gansu Province 822The Uyghurs send troops to help the Tang fight against rebels, but their aid is refused; the Tang pay them 70,000 pieces of silk to go home.	本年无收录事件	1607年起收录

韩国南北国时代 698–918

中国唐朝 618–907

日本平安时代 794–1185

美国

本年无收录事件

818발해 선왕 즉위
822신라에서 김헌창의 난이 일어남

February — Emperor Xianzong of Tang dies, probably from being poisoned by eunuchs; his son Li Heng succeeds him and becomes Emperor Muzong of TangEN
Dương Thanh rebels and seizes Đại LaEN
February — Xianzong died, possibly after being poisoned by one of his eunuch officers.EN
February — Xianzong's son Emperor Muzong of Tang became emperor of the Tang dynasty.EN

819全國節度使服從。藩鎮割據局面暫告結束。
819Tibetan Empire attacks Qing Prefecture
821Princess Taihe, 17th daughter of Emperor Xianzong of Tang, marries Kün tengride ülüg bulmïsh alp küchlüg bilge of the Uyghur Khaganate
821Tibetan Empire attacks Tang but are driven off by the governor of Yan Prefecture
821Tang and the Tibetan Empire sign a treaty of non-aggression with the Tang recognizing Tibet's ownership of the Western Regions as well as the Longyou and Hexi regions in what is now Gansu Province
822The Uyghurs send troops to help the Tang fight against rebels, but their aid is refused; the Tang pay them 70,000 pieces of silk to go home.

本年无收录事件

1607年起收录