Bede invented the Anglo-SaxonsWatch this thread
youtube: The Anglo-Saxon invasion History of Britain BBC documentary
http://www.dailymail.co.uk/sciencete...ndinavian.html who not only left lasting genetic legacies on the genetic makeup on this Island, but left even wider cultural impacts:
The arrival of Anglo-Saxons is associated with all sorts of cultural changes in this country, especially a re-emergence/strengthening in paganized Christianity (for example the Anglo-Saxon migrants had many distinct Christian-pagan burial customs, such as building barrows; some ancient churches still sport ancient Christian barrows from these times! https://historicengland.org.uk/listi...-entry/1014781 ) and distinct jewelry (i.e. https://sussexpast.co.uk/learning/le...y-anglo-saxons ) and ceramics (i.e. http://legacy.ashmolean.org/anglosax...food/bowl.html ) etc.
And just as the genetics, archaeological evidence and cultural changes etc back up the Anglo Saxon migrations, around this time you even witness a distinct shift in the English language and thus names (place names, people's names- names for all sorts of things!). For example here is a list of Anglo Saxon names used in England: https://www.behindthename.com/names/usage/anglo-saxon . While many of these names are virtually extinct now (you won't hear anyone going by the name of Dudda, Aelred or Cynefrith!) quite a number of Anglo Saxon origin names have survived in usage to the present day (for example Oscar, Mildred and Edward all have Anglo-Saxon origins). Anglo Saxons (with their ancient German language) also made the biggest foreign language contribution to the English language as we currently know it (for example: https://en.wikipedia.org/wiki/List_o...o-Saxon_origin ).