842
842 — China: Tibetan Empire enters decline after the death of Dharma / Japan: Jōwa Incident
3 events. The text is the source chronology verbatim; the terms are in Sources & licenses. The grey lines above and below are the surrounding 2 years.
| KoreaNorthern and Southern States period 698–918 | ChinaTang dynasty 618–907 | JapanHeian period 794–1185 | United States |
|---|
- No events recorded for this year
| - Tibetan Empire enters decline after the death of Dharma
- 840Uyghur Khaganate enters decline in the aftermath of civil war
- 840February — Emperor Wenzong of Tang dies; his brother Li Chan is placed on the throne by eunuchs and becomes Emperor Wuzong of Tang
- 840February — Wenzong's brother Emperor Wuzong of Tang became emperor of the Tang dynasty.
- 840February — Wenzong died.
- 841唐武宗即位，是為會昌中興。
- 843Proscription against foreign religions begins, starting with Manichaeism
- 843A large fire consumed four thousand buildings in an eastern neighborhood of the Tang capital Chang'an.
- 843A Tang army led by Shi Xiong attacks the Uyghurs displaced by the fall of their khaganate and slaughters 10,000 Uyghurs at "Kill the Foreigners" Mountain (Shahu)
- 844Zhaoyi defense command (mainly in south Shanxi) is brought under control
| - Jōwa Incident
- Emperor Montoku ascends to the throne.
- 840Nihon Kōki (3rd volume of historical chronicles Rikkokushi) was completed.
| covered from 1607 |