"England was originally a homogeneous culture" When was that relative to the colonisation by Angles, Saxons, Jutes then Vikings and Normans? Edit: It always a

"England was originally a homogeneous culture" When was that relative to the colonisation by Angles, Saxons, Jutes then Vikings and Normans? Edit: It always amuses me that Arthur, the great national hero, was fighting against the Angles/Saxons. Edit2: I'm Scottish so I'm biased ;-)