The Anglo Saxon Invasion

The Anglo-Saxons were a tribe made up of Angles, Saxons and Jutes of Germanic societies living in Holland, Belgium and Denmark.
The first Anglo-Saxons invaded and colonized Britain in the fifth and sixth centuries, this period is traditionally known as the Dark Ages. 

Culture
Religion: the Anglo-Saxon religion was pagan, but Christianity spread across England and remplaced their pagan religion.
Language: Old English as the language spoken until the norman conquest of AD 1066, when it gradually changed into the Middle English.
Literature: Anglo-Saxon literature included epic poetry, sermons, Bible translatios, legal works, chronicles and riddles.


Reasons

Some Anglo-Saxons came to Britain to fight, but others came peacefully, to find land to farm. The Anglo-Saxons knew Britain was a rich land. Their own lands often flooded, making it difficult to grow enough food. There was not enough land for everyone.

The Anglo-Saxons occupied Britain, setting 7 kingdoms:

• Sussex
• Wessex
• East Anglia
• Essex
• Kent
• Mercia
• Northumbria

Then these kingdoms were unified in three groups shown in the previous image:

• Northumbria
• Mercia
• Wessex

It is a time of war, of the breaking up of Roman Britannia into several separate kingdoms, of religious conversion and, after the 790s, of continual battles against a new set of invaders: the Vikings.The Saxons they ruled in  England for about 500 years.