Genealogical DNA testing methods are also being used on a longer time scale to trace human migratory patterns and determine, for example, when the first humans came to North America and how they got there. For several years, a number of researchers and laboratories from around the world have been sampling indigenous populations from around the globe in an effort to map historical human migration patterns. Recently, several projects have been created that are aimed at bringing this science to the public. One example is the Genographic Project, which aims to map historical human migration patterns by collecting and analyzing DNA samples from over 100,000 people across five continents.
Genealogical DNA testing methods are also being used on a longer time scale to trace human migratory patterns and determine, for example, when the first humans came to North America and how they got there. For several years, a number of researchers and laboratories from around the world have been sampling indigenous populations from around the globe in an effort to map historical human migration patterns. Recently, several projects have been created that are aimed at bringing this science to the public. One example is the Genographic Project, which aims to map historical human migration patterns by collecting and analyzing DNA samples from over 100,000 people across five continents.
http://psychology.wikia.com/wiki/Genetic_genealogy