In 2014, Elhaik and colleagues published the Geographic Population Structure (GPS) tool in Nature Communications. GPS is the most accurate tool for predicting the geographic origin of world populations up to the past 1000 years. For example, the authors have demonstrated the accuracy of their tool using Oceanian islanders and Sardinian villagers. The concept of GPS rests on a new paradigm that assumes all human genomes are mixtures of different gene pools. You can learn more by watching this video and reading about the ongoing research in Dr. Elhaik’s lab. An FAQ page about GPS is available in Dr. Elhaik’s website.