Truth:

All modern people ARE descended from Africans.

Here’s another debate that’s been going on for decades finally answered. In paleo-anthropology, the recent single-origin hypothesis (RSOH, or Out-of-Africa model, or Replacement Hypothesis) is the account of the origin of anatomically modern humans, Homo sapiens. According to the RSOH, anatomically modern humans evolved in Africa between 100,000 and 200,000 years ago, with members of one branch leaving Africa about 100,000 years ago. These emigrants spread to the rest of the world, replacing (and not interbreeding with) other Homo species already there, such as Neanderthals and Java man. While they have revised this history several times over the last decades, researchers currently agree that the oldest named species of the genus Homo, Homo habilis, evolved in Africa around two million years ago, and that members of the genus migrated out of Africa somewhat later, at least 1.5 million years ago. The descendants of these ancient migrants, which probably included Homo erectus, have become known through fossils uncovered far from Africa, such as those of "Peking man" and "Java man". Homo neanderthalensis is also considered a descendant of early migrants. Introducing “African Eve” or Mitochondrial Eve.  Mitochondrial Eve (many times referred to as “African Eve”) is an ancestor who has been hypothesized on the grounds of fossil as well as DNA evidence. The holder of this title is believed by some to have lived about 140,000 years ago in what is now Ethiopia, Kenya or Tanzania. The time she lived is calculated based on the molecular clock technique of correlating elapsed time with observed genetic drift. Only Mitochondrial Eve, and her matrilineal ancestors, have a purely matrilineal line of descent to all humans alive today. Because mitochondrial DNA is only passed through matrilineal descent, all humans alive today have mitochondrial DNA that is traceable back to Mitochondrial Eve. Mitochondrial Eve is the most recent common ancestor of all human via the mitochondrial DNA pathway, not the unqualified MRCA of all humanity. All living humans can trace their ancestry back to the MRCA via at least one of their parents, but Mitochondrial Eve can only be reached via the maternal line. Therefore, she necessarily lived much longer ago than the MRCA of all humanity. Mitochondrial Eve is the most recent common ancestor (MRCA) of all humans via the mitochondrial DNA pathway. In other words, she is the MRCA found when ancestry of all living humans it traced back in time, following only the maternal lineage. Mitochondrial DNA pathway is equivalent to maternal lineage, because Mitochondrial DNA is only passed down from mother to child, never father to child. To find the Mitochondrial Eve of all humans living today, one can start by listing all individuals alive today. For every individual (males and females), trace a line from the individual to his/her mother. Then continue those lines from each of those mothers to their mothers, and so on, effectively tracing a family tree backward in time based purely on mitochondrial lineages. Going back through time these mitochondrial lineages will converge when two or more women have the same mother. The further back in time one goes, the fewer mitochondrial ancestors of living humans there will be, until only one is left. This is the most recent common matrilineal ancestor of all humans alive today, i.e. Mitochondrial Eve. References: Wikipedia.org – http://en.wikipedia.org/wiki/African_Eve Nature Out of Africa Again and Again by Templeton in Nature Nature.com -          http://www.nature.com/nature/journal/v416/n6876/abs/416045a.html                      This Myth has been CONFIRMED!