Put the following sentences into the correct order to complete the paragraph. BRITAIN’S DNA MAP Modern genetic science throws up some worrying questions. But it is at least producing one very valuable finding. It is showing that national and ethnic differences have very little to do with race and much more to do with culture instead. Then, the Romans conquered it and stayed for nearly four centuries. This is why in modern times we talk about England on the one hand and the 'Celtic nations' of Scotland, Wales, and Ireland on the other. And yet all these successive invasions appear to have made little difference to the modern gene pool. In 1066, England was invaded again, this time by the Normans from France. Moreover, it turns out that the vast majority of people in Britain and Ireland have maternal genes dating back at least 10,000 years. In the next five centuries, first the Anglo-Saxons and then the Vikings arrived. Research has found, for example, that around 60% of all men in southern England are directly descended from Celts. Around 700BC, we are told, Britain was invaded by the Celts, who displaced the indigenous people. The story goes that, during this time of Germanic invasions, the native Celts were all either killed or driven north and west. Take the story of Britain, for instance, which can seem like one of repeated mass killings and mass migrations. The conclusion we must draw from these findings is that history is often less bloody than we assume it to be and that earlier people in Britain were not all killed or displaced. Instead, most of them were assimilated into the newly dominant culture.