841
841 — China: 唐武宗即位，是為會昌中興
1 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 |
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- No events recorded for this year
- 839신라 문성왕 즉위
- 839신라 장보고의 도움으로 신무왕 즉위
| - 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.
- 842Tibetan Empire enters decline after the death of Dharma
- 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)
| - No events recorded for this year
- 839Last envoy to Tang China sent (some later embassies were cancelled).
- 840Nihon Kōki (3rd volume of historical chronicles Rikkokushi) was completed.
- 842Jōwa Incident
- 842Emperor Montoku ascends to the throne.
| covered from 1607 |