The Anglo-Saxons were a cultural group who inhabited England from the 5th century. They comprised people from Germanic Tribes who migrated to the island from continental Europe, their descendants, and indigenous English groups who adopted many aspects of Anglo-Saxon culture and language. The Anglo-Saxons established the Kingdom of England, and the modern English Language owes almost half of its words – including the most common words of everyday speech – to their language.
Historically, the Anglo-Saxon period denotes the period in Britain between about 450 and 1066, after their initial settlement and up until the Norman conquest. The early Anglo-Saxon period includes the creation of an English nation with many of the aspects that survive today, including regional government of shires and hundreds. During this period, Christianity was established and there was a flowering of literature and language. Charters and law were also established. The term Anglo-Saxon is popularly used for the language that was spoken and written by the Anglo-Saxons in England and eastern Scotland between at least the mid-5th century and the mid-12th century. In scholarly use, it is more commonly called Old English.
The history of the Anglo-Saxons is the history of a cultural identity. It developed from divergent groups in association with the people's adoption of Christianity and was integral to the establishment of various kingdoms. Threatened by extended Danish invasions and military occupation of eastern England, this identity was re-established; it dominated until after the Norman Conquest. The visible Anglo-Saxon culture can be seen in the material culture of buildings, dress styles, illuminated texts and grave goods. Behind the symbolic nature of these cultural emblems, there are strong elements of tribal and lordship ties. The elite declared themselves as kings who developed buhrs and identified their roles and peoples in Biblical terms. Above all, as Helena Hamerow has observed, "local and extended kin groups remained...the essential unit of production throughout the Anglo-Saxon period." The effects persist in the 21st century as, according to a study published in March 2015, the genetic makeup of British populations today shows divisions of the tribal political units of the early Anglo-Saxon period.