A study of people in 40 countries illustrates long-established changes in Europe's population. Going back a few thousand years, researchers find that everyone on Earth is related to everyone else.
The Huns and the Slavs made incursions into Eastern Europe about 1,500 years ago. Migrants moved from Ireland to England in recent centuries. Populations in Italy and Spain have been comparatively stable. None of this is breaking news. But scientists were able to see it anew by examining the patterns of genes in 2,257 people now living in 40 countries on the continent.
You can read more in an article by Eryn Brown, published in the Los Angeles Times, at http://goo.gl/eJdmK.
My thanks to newsletter reader Beau Sharbrough for telling me about this story.