The 820s decade ran from January 1, 820, to December 31, 829.
The 830s decade ran from January 1, 830, to December 31, 839.
The 850s decade ran from January 1, 850, to December 31, 859.
The 870s decade ran from January 1, 870, to December 31, 879.
The 880s decade ran from January 1, 880, to December 31, 889.
The 780s decade ran from January 1, 780, to December 31, 789.
Year 840 (DCCCXL) was a leap year starting on Thursday in the Julian calendar, the 840th year of the Common Era (CE) and Anno Domini (AD) designations, the 840th year of the 1st millennium, the 40th year of the 9th century, and the 1st year of the 840s decade.
The 910s decade ran from January 1, 910, to December 31, 919.
The 920s decade ran from January 1, 920, to December 31, 929.
The 930s decade ran from January 1, 930, to December 31, 939.
Year 836 (DCCCXXXVI) was a leap year starting on Saturday of the Julian calendar, the 836th year of the Common Era (CE) and Anno Domini (AD) designations, the 836th year of the 1st millennium, the 36th year of the 9th century, and the 7th year of the 830s decade.
Year 853 (DCCCLIII) was a common year starting on Sunday of the Julian calendar.
Year 854 (DCCCLIV) was a common year starting on Monday of the Julian calendar.
Year 856 (DCCCLVI) was a leap year starting on Wednesday of the Julian calendar.
Year 910 (CMX) was a common year starting on Monday of the Julian calendar.
Year 912 (CMXII) was a leap year starting on Wednesday of the Julian calendar.
Year 889 (DCCCLXXXIX) was a common year starting on Wednesday of the Julian calendar.
Year 888 (DCCCLXXXVIII) was a leap year starting on Monday of the Julian calendar.
Beorhtwulf was King of Mercia, a kingdom of Anglo-Saxon England, from 839 or 840 to 852. His ancestry is unknown, though he may have been connected to Beornwulf, who ruled Mercia in the 820s. Almost no coins were issued by Beorhtwulf's predecessor, Wiglaf, but a Mercian coinage was restarted by Beorhtwulf early in his reign, initially with strong similarities to the coins of Æthelwulf of Wessex, and later with independent designs. The Vikings attacked within a year or two of Beorhtwulf's accession: the province of Lindsey was raided in 841, and London, a key centre of Mercian commerce, was attacked the following year. Another Viking assault on London in 851 "put Beorhtwulf to flight", according to the Anglo-Saxon Chronicle; the Vikings were subsequently defeated by Æthelwulf. This raid may have had a significant economic impact on Mercia, as London coinage is much reduced after 851.
Events from the 9th century in England.
