It was Bede who identified the invaders as Angles, Saxons and Jutes. But he sometimes used the names "Angli" and "Saxones" for the same people in different parts of his writings. In Book I, Chapter 15 he said that by invitation of King Vortigern "Angles "or" Saxons" came to Britain in three longships. Modern authorities confirm that Angles, Saxons, Frisians and some Jutes did come to England during this migration time period. The differences between the tribes that moved to England were not significant. Kent was different in culture from other parts of England, mostly because it had close contact with parts of Europe such as Gaul. 