| Millennium: | 1st millennium |
| Centuries: | 8th century – 9th century – 10th century |
| Decades: | 810s 820s 830s – 840s – 850s 860s 870s |
| Years: | 840 841 842 843 844 845 846 847 848 849 |
| Categories: | Births – Deaths – Architecture Establishments – Disestablishments |
The 840s decade ran from January 1, 840, to December 31, 849.
Contents |
Events and trends
- 841—Dublin is founded by Viking settlers of Ireland.
- 841—Battle of Fontenay-en-Puisaye fought between the two allied brothers Louis the German and Charles the Bald and their other brother the emperor Lothair I in their contention over the division of the Carolingian Empire and the title of emperor.
- 842—Charles the Bald and Louis the German pledge their allegiance to each other and their opposition of the emperor Lothair I in the Oaths of Strasbourg.
- 845—Vikings raid Western Francia (France).
- After the death of Louis the Pious, his sons Charles the Bald, Louis the German and Lothair II of Lotharingia fight about the division of the empire until the treaty of Verdun (843).
- Vikings conquer Frisia, the present Netherlands and the German North Sea coastline.
- Beginning of Arab domination on Taranto, which lasts until 880.
Significant people
- Alfred the Great
- Louis the Pious
- Charles the Bald
- Ermentrude of Orléans
- Louis the Stammerer
- Louis the German
- Lothair I
- Kenneth I of Scotland
- Ragnar Lodbrok
- Michael III
Births
- 844—Birth of Abdullah ibn Muhammad al-Umawi.
- 844—Birth of Judith of Flanders.
- 844—Birth of Yu Xuanji.
- 845—Birth of Charles of Provence.
- 846—Birth of Hasan al-Askari.
- 846—Birth of Louis the Stammerer.
- 847—Birth of Alfred the Great.
- 848—Birth of Charles the Child.
- 847—Birth of Wang Jian (Former Shu).
- 849—Birth of Carloman, son of Charles the Bald.
Deaths
- 840—Death of Louis the Pious.
- 840—Death of Emperor Junna.
- 840—Death of Emperor Wenzong of Tang.
- 841—Death of Zongmi.
- 841—Death of Li Ao (philosopher).
- 842—Death of Al-Mu'tasim.
- 842—Death of Emperor Saga.
- 842—Death of Alfonso II of Asturias.
- 842—Death of Theophilos (emperor).
- 842—Death of Liu Yuxi.
- 843—Death of Jia Dao.
- 844—Death of Michael I Rangabe.
- 844—Death of Pope Gregory IV.
- 844—Death of Merfyn Frych.
- 846—Death of Bai Juyi.
- 846—Death of Jang Bogo.
- 846—Death of Harald Klak.
- 846—Death of Emperor Wuzong of Tang.
- 847—Death of Pope Sergius II.
- 847—Death of Feidlimid mac Cremthanin.
- 847—Death of Al-Wathiq.
- 849—Death of Walafrid Strabo.
Marriages
- 842—Marriage between Charles the Bald and Ermentrude of Orléans.
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