Geneticists at Oxford University, University College London and the Max Planck Institute for Evolutionary Anthropology in Germany had published a report, "A Genetic Atlas of Human Admixture History,", which is an analysis of the blending of people in human populations around the world. They noted historical events in our own and our ancestors' DNA. They used DNA to characterize significant historical blending events, and identified 100 historical events of human contact over the last 4,000 years.
