891
| Years: 887 888 889 890 – 891 – 892 893 894 895 | |
| Decades: 860s 870s 880s – 890s – 900s 910s 920s | |
| Centuries: 8th century – 9th century – 10th century | |
Events
- October 6 – Election of Pope Formosus
- Arnulf of Carinthia defeats the Normans at the Battle of Leuven
Births
- Abd ar-Rahman III, emir and first caliph of Córdoba
Deaths
- February 6 – Photius, Patriarch of Constantinople
- Fujiwara no Mototsune, Japanese regent
- Pope Stephen VI
Categories: 891