842
year
842 (DCCCXLII) was a common year starting on Sunday of the Julian calendar, the 842nd year of the Common Era (CE) and Anno Domini (AD) designations, the 842nd year of the 1st millennium, the 42nd year of the 9th century, and the 3rd year of the 840s decade. As of the start of 842, the Gregorian calendar was 4 days ahead of the Julian calendar, which was the dominant calendar of the time.
| Millennium: | 1st millennium |
|---|---|
| Centuries: | 8th century – 9th century – 10th century |
| Decades: | 810s 820s 830s – 840s – 850s 860s 870s |
| Years: | 839 840 841 – 842 – 843 844 845 |
| Gregorian calendar | 842 DCCCXLII |
| Ab urbe condita | 1595 |
| Armenian calendar | 291 ԹՎ ՄՂԱ |
| Assyrian calendar | 5592 |
| Balinese saka calendar | 763–764 |
| Bengali calendar | 249 |
| Berber calendar | 1792 |
| Buddhist calendar | 1386 |
| Burmese calendar | 204 |
| Byzantine calendar | 6350–6351 |
| Chinese calendar | 辛酉年 (Metal Rooster) 3538 or 3478 — to — 壬戌年 (Water Dog) 3539 or 3479 |
| Coptic calendar | 558–559 |
| Discordian calendar | 2008 |
| Ethiopian calendar | 834–835 |
| Hebrew calendar | 4602–4603 |
| Hindu calendars | |
| - Vikram Samvat | 898–899 |
| - Shaka Samvat | 763–764 |
| - Kali Yuga | 3942–3943 |
| Holocene calendar | 10842 |
| Iranian calendar | 220–221 |
| Islamic calendar | 227–228 |
| Japanese calendar | Jōwa 9 (承和９年) |
| Javanese calendar | 739–740 |
| Julian calendar | 842 DCCCXLII |
| Korean calendar | 3175 |
| Minguo calendar | 1070 before ROC 民前1070年 |
| Nanakshahi calendar | −626 |
| Seleucid era | 1153/1154 AG |
| Thai solar calendar | 1384–1385 |
| Tibetan calendar | 阴金鸡年 (female Iron-Rooster) 968 or 587 or −185 — to — 阳水狗年 (male Water-Dog) 969 or 588 or −184 |
Events
change- February 14 – Charles the Bald and Louis the German sign a treaty.
- Oaths of Strasbourg — alliance of Louis the German and Charles the Bald against emperor Lothar — sworn and recorded in vernacular languages.
- Ramiro I succeeds Alfonso II as king of Asturias.
- Uurad is succeeded by Bred, then Ciniod.
- Charles the Bald marries Ermentrude.
- Three year old Michael III succeeds Theophilus (emperor) as emperor of Byzantium.
- End of the reign of caliph Moqtasim.
- Uyghurs leave the Mongolian plateau.
Deaths
change- January 5 — Al-Mu'tasim, Abbasid caliph (b. 794)
- Emperor Saga of Japan (b. 786)
- Alfonso II of Asturias (b. 759)
- Theophilus, Byzantine Emperor (b. 813)
- Liu Yuxi, Chinese poet, philosopher, and essayist (born 772)