826
| Years: 822 823 824 825 - 826 - 827 828 829 830 | |
| Decades: 790s 800s 810s - 820s - 830s 840s 850s | |
| Centuries: 8th century - 9th century - 10th century | |
Events
- The Danish king accepts Christianity.
- Tang Wen Zong succeeds Tang Jing Zong as emperor of China.
- Saint Methodius, missionary and Bible translator
- Theodore the Studite, monk and theologician (approximate date)