Halangy Down is a prehistoric settlement located on the island of St Mary's, in the Isles of Scilly. The ancient site covers the lower slope of Halangy Down hill, overlooking the coastal inlet between the island of St. Mary's and Tresco Island. On the site are the remains of an Iron Age village, two entrance graves, prehistoric field systems, standing stones, post-medieval breastworks, and a Victorian kelp pit.
Archaeological excavations have revealed that the first stone structures were built during the Iron Age (800 BC - 100 AD). Evidence shows that the buildings were continually altered and replaced over the 500 year period of occupation, from the later Iron Age to the Roman period of occupation in Britain (43 AD - 410 AD). The village was made up of a complex of attached stone houses. One house, a large multi-room residence with an interconnecting courtyard, had been built in the Romano-British period. The excavation findings included Iron Age, Romano-British and Anglo-Saxon pottery; flint and quartz tools; a slate spindle-whorl; several millstones; bronze brooches and iron slag.
Near Bant's Carn is a Bronze Age entrance grave located on a steep slope adjacent to Halangy Dwon. The tomb is one of the best examples of a Scillonian entrance grave.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.