Illegal Immigration: A Simple Historical Perspective

This is Æthelstan,  first King of the English.  

The traditional view of the process has assumed the migration of several Germanic peoples, later collectively referred to as Anglo-Saxons, from the western coasts of continental Europe, followed by the establishment of Anglo-Saxon kingdoms across most of what is now England and parts of lowland Scotland. 

The assumption that the Anglo-Saxon settlement developed from the migration of people from the Germanic coastlands, largely displacing the native people, has been challenged by those suggesting that the changes in material culture and language were caused primarily by a process of acculturation that followed the movement of a relatively small number of people. 

Britain used to be a Celtic Nation

Population pressures and migration 

can move mountains 

Just ask this guy.