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see also  http://en.wikipedia.org/wiki/Human%5FGenome%5FProject    see also http://www.ornl.gov/sci/techresources/Human_Genome/home.shtml

Genome project   from http://www.ornl.gov/sci/techresources/Human_Genome/elsi/humanmigration.shtml

What is genetic anthropology?

Genetic anthropology is an emerging discipline that combines DNA and physical evidence to reveal the history of ancient human migration. It seeks to answer the questions, "Where did we come from, and how did we get here?"

DNA studies indicate that all modern humans share a common female ancestor who lived in Africa about 140,000 years ago, and all men share a common male ancestor who lived in Africa about 60,000 years ago. These were not the only humans who lived in these eras, and the human genome still contains many genetic traits of their contemporaries. Humanity's most recent common ancestors are identifiable because their lineages have survived by chance in the special pieces of DNA that are passed down the gender lines nearly unaltered from one generation to the next. These ancestors are part of a growing body of fossil and DNA evidence indicating that modern humans arose in sub-Saharan Africa and began migrating, starting about 65,000 years ago, to populate first southern Asia, China, Java, and later Europe. Each of us living today has DNA that contains the story of our ancient ancestors' journeys.