Original sentence: German auxiliary troops may even have been involved in the Roman invasion of the island in the 1st Century A.It is believed that the Anglo-Saxons supplanted the native Romano-British populations.It should also be noted that the term Anglo-Saxon is commonly applied generally to the Germanic inhabitants of the island, regardless of their exact tribal or ethnic heritage.Large numbers of Germanic immigrants and auxiliary troops may have settled in Britain long before Roman power collapsed there, thus giving Germanic language and culture a long time to grow and flourish on the island, and to ultimately become dominant.Since 1945, this proportion has grown, as Britains's Empire and Commonwealth were used as a source of labour recruitment for her post war economic expansion.Some archaeologists also see only limited evidence of immigration in the record, Francis Pryor writes I also can't see any evidence for bona fide mass migrations after the Neolithic.Some of the Roman troops who settled in the Brtish Isles may have been of North African and Middle Eastern origin.The Y chromosome haplotypes from these populations are thought to correspond to R1b (Iberian), I (Balkans) and R1a (Caucuses), these three haplotypes occur all over Europe, but their frequencies are not spread uniformly.The preponderance of the R1b haplotype on the Y chromosomes of English men (about 60%) indicates that they are descended primarily from the earliest paleolithic peoples thought to have recolonised western Europe after the end of the last major glaciation some 10-12 thousand years ago.There are thought to have been three separated pockets of human habitation in Europe during the last major glaciation (the end of the paleolithic and the Pleistocene), on the Iberian peninsula, in the the Balkans and in the Caucuses.There has also been a very small Black and Asian presence in England since at least the 16th century.There is no reason to assume that immigration of Germanic tribes to Britain was any different to other Roman provinces, in which case the Germanic replacement of Celtic culture and language may have been underway long before the collapse of Roman power on the island.This same process occurred in many other provinces along the Roman border with the barbarians
Edited sentence: There has also been a very small Black and Asian presence in England since at least the 16th century.. In recent times, these figures have grown, due to the liquidation of the British Empire and the mass immigration of the populations of the former colonies