Researchers have found DNA from wheat in a peat bog that is now off-shore at the base of a cliff in Great Britain. Previously, it was assumed that the early Paleolithic people living in the area were hunter-gatherers, and farming was not introduced until 2,000 years later , in 6,000BC. http://www.bbc.com/news/science-environment-31648990
This is very interesting. To me it just illustrates that humans were much more advanced in technology and travel than is commonly believed. If I remember correctly, there were also Middle Eastern grains and Egyptian fish hooks found in Swiss lake settlements from ancient times.