A charred hazelnut shell, recovered during the excavations at Longhowe in 2007, has been dated to 6820–6660 BC. This pushed back the earliest confirmed date of the occupation of Orkney by 3,000 years.
Mine Howe, at Toab in the south of Tankerness, is a
prehistoric subterranean man-made chamber dug into a large mound. Its walls are lined with stones fitted to form an arch over the cavity and 29 steps lead to a rock floor. These steps descend to a half-landing where they turn back on themselves and a further steps descend to a chamber. This chamber is only about in diameter but is over high and has a
corbelled roof. The mound is surrounded by a substantial causewayed ditch. The origin of the howe (from
Old Norse word
haugr meaning barrow) is not perfectly understood, although it is thought to date from the
Iron Age. There is some similarity to the well inside the
Broch of Gurness. The Howie of the Manse is a ruined
broch on the southern shore of Loch of Tankerness. Further east at Taing of Beeman there is a scattered prehistoric settlement, the remains of which are of unknown provenance. In 1867 at nearby Groatsetter the fringed woollen
Orkney Hood was discovered lying in
peat. It has thought to date from the late Iron Age and may be the oldest textile ever found in Britain. ==History==