- the beginning of the Medieval Warm Period
- Viking groups settle in northern France - Norse become Normans
- 902, Norse Vikings capture Dublin.
- 920, Vikings colonize Iceland.
- 985, Icelandic Vikings settle in Greenland
- Foundation of Cluny, first federated monastic order
- Otto I the Great
- Edmund I of England
- Theophanu, wife of Otto II and mother of Otto III
- Vladimir I, Prince of Kievan Rus
Inventions, Discoveries, Introductions
Some Groups that Cover This Period