Stonehenge information plaque, commemorating the birthplace of Cecil Edward Herbert Chubb (1876-1934), who gave Stonehenge to the nation in 1918. Stonehenge is an ancient arrangement of large standing stones (megaliths) on Salisbury Plain, England. It is thought to have been built around 2000 BC by neolithic peoples. Some of the stones are thought to form markers that indicate rising and setting points for the Sun and the Moon, allowing accurate prediction of forthcoming lunar and solar eclipses.