Original sentence: In Europe two waves of migrations dominate demographic distributions, that of the Celtic people, and the later Migration Period from the North and East, both being examples of general cultural change sparked by primarily elite and warrior migration.In some places, substantial cultural transformation occurred following the migration of relatively small elite populations, Turkey and Azerbaijan being such examples, and another possible although disputed example being a shift from Brittonic to English culture between the 4th and 7th centuries CE in what had been Roman Britain
Edited sentence: In Europe two waves of migrations dominate demographic distributions, that of the Celtic people, and the later Migration Period from the North and East, establishing Germanic colonization of places like England and Lowland Scotland, as well as Slavic dominance across most of Eastern Europe.In some places, substantial cultural transformation occurred following the migration of relatively small elite populations, Turkey and Azerbaijan being such examples