"The Micronesian of these people from Anatolia to Britain. It was just a part of a general. Massive expansion in about six thousand BC that introduced farming into Europe. And before that Europe was populated by small traveling groups, which hunted and gathered so they gathered up wild plants in the fished for shellfish in hunted wild animals, one group of farmers followed the river Danube up into central Europe, yet, another group traveled west across the Mediterranean, and the DNA reveals that Neolithic Britons were largely descended from groups who took the Mediterranean route and the hug the coast and hop from island to island on boats in some British groups had a minor amount of ancestry from groups that followed the Danube route in there's DNA evidence from early British farmers the found that they closely resembled Neolithic people from Iberia, which are mostly in modern. Spain Portugal on these farmers from were descended from people who made the journey across the Mediterranean, and they traveled north through France, and they may have entered Britain from the west through whales or southwest England and these early Neolithic migrants to Britain have introduced the tradition of building monuments using large stones known as megaliths, and that's Stonehenge, and that's part of the tradition from these people. And when these farmers arrived in about four thousand b c the restore groups of western hunter gatherers, but DNA shows that the two groups didn't really mix very much in these Neolithic farmers completely replaced British hunter-gatherers apart from one group in western Scotland where the Neolithic inhabitants had elevated local ancestry in that could have come down to the farmers group. Simply. Having greater numbers in the others. Doctor Tom booth who's a specialist in ancient DNA from the natural history museum in London said we don't find any detectable evidence at all for the local British western hunter-gathering Sestri in the meal lick farmers after they arrive that doesn't mean they don't mix at all. It just means. The maybe their population sizes were too small to have left any kind of genetic legacy, and these Neolithic farmers had probably had to adapt the practices to different climatic conditions as they moved across Europe. But by the time, they reach Britain were already tooled up in well prepared for growing crops in a north west European climate. And they also analyze DNA from hunter gatherers that time where those skeletons was dubbed cheddar man whose skeletal remains have been dated to around seventy one hundred BC he was study of a reconstruction on. Unveiled at the national history museum last year. And if the DNA is correct unlike most other European hunter gathers at the time, he had dark skin and blue eyes, but the Neolithic farmers were pale-skinned with Brown eyes and black or dark Brown hair. So the Neolithic people from IBM brought over the tradition of giant rock structures. So that's where the Stonehenge came from mystery solved. They weren't put there by aliens. There's no reason to be contacting outer space to figure out where these things came from. It was from Neolithic people from Anatolia, which is modern day Turkey, and then they moved to Iberia, and then they reached Britain in about four thousand BASI, those people built stone hedge."