The Timeline of conflict in Anglo-Saxon Britain is concerned with the period of history from just before the departure of the Roman Army, in the 4th century, to just after the Norman Conquest in the 11th century.
The information is mainly derived from annals and the Venerable Bede. The dates, particularly from the fourth to the late sixth centuries, have very few contemporary sources and are largely later constructions by medieval chroniclers.[1] The historian Diana Greenway described one such 12th-century chronicler, Henry of Huntingdon, as a 'weaver' compiler of history, and the archaeologist Martin Welch described the Anglo-Saxon Chronicle as "a product of the West Saxon court... concerned with glorifying the royal ancestry of Alfred the Great. Manipulation of royal genealogies, in this and other sources, to enhance the claims of contemporary rulers was common. Literary formulas associated with original myths are a common feature of earlier entries."[2][3] Although the timeline uses the annals for this period of history, information provided by these sources can be problematic, particularly with the earlier dates.