Two miles north of Salisbury in Wiltshire, England, is a small hill known as Old Sarum. Human habitation on this defensible outcrop and is believed to have Neolithic roots and certainly provably dates back to at least the iron age.
If the excellent book entitled “Sarum” by Edward Rutherford is accepted, then human habitation dates back to the time (8-10,000 years ago?) after the last ice age when Britain was cut off from mainland Europe and formed the British Isles.
Salisbury was founded in 1220 when relations strained between the military and clergy at Old Sarum, which by then had become a fort and had its own cathedral. Sarum fell into disrepair and Salisbury gained the fame it now enjoys, helped by having the highest spire in the land at 23m (404ft).
Now new non-invasive technology has determined more information about the buildings and layout of Old Sarum: