article_snippet: The diverse genetic ancestry of South America has been mapped in unprecedented detail revealing key events the history books missed.
article_snippet: Study compared the DNA of current Africans and Europeans using more than 4,000 DNA samples to reveal the genetic fingerprints of the slave trade and colonisation.
article_snippet: The diverse genetic ancestry of North and South America North and South has been mapped in unprecedented detail, revealing key events the history books missed.
article_snippet: Study compared the genes of current Africans and Europeans using more than 4,000 DNA samples to reveal the genetic fingerprints of the slave trade and colonisationthe slave trade and colonisation.
article_snippet: We can see the huge genetic impact that the slave trade had on American populations and our data match historical records', said study author Dr Garrett Hellenthal from the UCL Genetics Institute, . '
article_snippet: Records show that around a third of the slaves sent to Spanish America in the 17th Century came from this region, and we can see the genetic evidence of this in modern Americans really clearly.'
article_snippet: These genetic findings also uncover previously unknown migration. '