The area was settled as early as 3000 BC, and offerings of that period imported from Cumbria and Wales left on the sacred hilltop at Cairnpapple Hill, West Lothian, show that by then there was a link with these areas. By around 1500 BC Traprain Law in East Lothian was already a place of burial, with evidence of occupation and signs of ramparts after 1000 BC. Excavation at Edinburgh Castle found late Bronze Age material from about 850 BC.