The document summarizes the origins and history of Britain from 700 BC to the Viking invasions. It first discusses the Celtic peoples who arrived in 700 BC and established a tribal society. Next it covers the Roman invasion in 55 BC and their introduction of towns, roads, and Christianity. It also notes the construction of Hadrian's Wall to protect from Scottish invaders. The document then discusses the Anglo-Saxon settlement beginning in 449 AD by Germanic tribes including the Angles, Saxons and Jutes, and the establishment of the seven Anglo-Saxon kingdoms. Finally, it briefly outlines the Viking invasions between the 8th and 9th centuries when they began raiding and eventually conquered parts of Britain