Yes they did they came after the Romans had left.
because they felt like it
The Saxons took over Britain, mainly the southern part.
The Dutch under Williaam of Orange? The Romans, Anglo Saxons. Danes. Normans.
they migrated to Britain in the 400's
Rome did not stop the Saxons. With the Angles, Jutes and other tribes, the Saxons conquered Roman Britain.
the Anglo Saxons enter the Britain timeline in the down fall of rome (470 - 476 AD).
celts
410
they pooped their pants
Bengali
410
no both were germanic but they fought they were cousins