Radiocarbon dating leather
A decline in tree species and a rise in grassland and cereals can be detected in the pollen record.have been found at Gwernvale near Crickhowell, Trelystan on the Long Mountain in Montgomeryshire and on the site of the later hillfort at Moel y Gaer, Rhosesmor in Clwyd. It would appear that most Neolithic settlements in Wales were isolated farms.The Sweet Track (named after the man who discovered it) is the oldest prehistoric trackway found in Britain.
It is likely that the earlier hunters on these hills had revered rocks, prominent hills and other natural features, but any artificial structures which they built had a fleeting life.Studies of the tombs and of the wooden and stone circles which have been found in many parts of Britain suggest that the Neolithic people were aware of the movement of the sun, moon and other stars.These changes would have been important in marking the changing seasons and the best time to plant crops and to harvest.In many of these tombs the bones of large numbers of people have been found, some of the bones are in disorder as if they were put in the tombs after the bodies had decayed.At some sites archaeologists have found evidence that bodies were laid out in special enclosures, and later the bones were gathered up and put in the tomb along with those of relatives who had died years before.
The planks were then wedged into place between the peg-tops, parallel to the rails beneath, and held firmly in position by vertical pegs.