Evidence
Theoretical work by Luca Cavalli-Sforza showed that, if admixture between expanding farmers and previously resident groups of hunters and gatherers is not immediate, the process would result in the establishment of broad genetic gradients. Because broad gradients spanning much of Europe in the Southeast-Northwest direction were identified in empirical genetic studies by Cavalli-Sforza, Robert R. Sokal, Guido Barbujani, Lounès Chikhi and others, it seemed likely that the spread of agriculture into Europe occurred by the expansion and spread of agriculturists, possibly originating in the Fertile crescent of the Near East region. This is referred to as the Neolithic demic diffusion model.
Craniometric and archaeological studies have also arrived at the same conclusion.
Read more about this topic: Demic Diffusion
Famous quotes containing the word evidence:
“All credibility, all good conscience, all evidence of truth come only from the senses.”
—Friedrich Nietzsche (1844–1900)
“Yet in spite of all they sang in praise of their “Eliza’s reign,” we have evidence that poets may be born and sing in our day, in the presidency of James K. Polk.”
—Henry David Thoreau (1817–1862)
“The conviction that the best way to prepare children for a harsh, rapidly changing world is to introduce formal instruction at an early age is wrong. There is simply no evidence to support it, and considerable evidence against it. Starting children early academically has not worked in the past and is not working now.”
—David Elkind (20th century)