Castle Garden 1930 Census :: FREE 1790-1930 Census Resources for Genealogy & Family History Free Genealogy and Family History Online - The USGenWeb Project Fold3 - Historical military records Access Genealogy: A Free Genealogy Resource Olive Tree Genealogy - free genealogy for your ancestors Free Genealogy and Family History Online - The USGenWeb Project Atlas of the Human Journey - The Genographic Project When humans first ventured out of Africa some 60,000 years ago, they left genetic footprints still visible today. By mapping the appearance and frequency of genetic markers in modern peoples, we create a picture of when and where ancient humans moved around the world. These great migrations eventually led the descendants of a small group of Africans to occupy even the farthest reaches of the Earth. Our species is an African one: Africa is where we first evolved, and where we have spent the majority of our time on Earth. According to the genetic and paleontological record, we only started to leave Africa between 60,000 and 70,000 years ago. Once the climate started to improve, after 70,000 years ago, we came back from this near-extinction event. Slightly later, a little after 50,000 years ago, a second group appears to have set out on an inland trek, leaving behind the certainties of life in the tropics to head out into the Middle East and southern Central Asia.
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