Behind the small Asva village on a low-lying hayfield is located one of the most archaeologically important bronze-age sites in Northern Europe. This site, Asva, has given its name to an entire culture. Asva culture was the westernmost reach of the Finno-Ugrian late Bronze Age culture. This culture was based on herding, seal hunting, the beginnings of agriculture and, bronze casting.
During the Bronze Age, the ridge on which the settlement was located was an islet or peninsula in a shallow bay. Today, the sea has retreated many miles, and the settlement reminds us of its old seashore location only during spring flooding. The area was first excavated in 1930-1931 by a local resident, O. Reis, then a student at Tartu University.
Later excavations verified the existence of the oldest (at that time) and the longest habited fortified settlement on Saaremaa. The entire settlement covers a 3,500 square meter area. Approximately one sixth of that area has been excavated, a total of 5,800 finds has been collected. The oldest dated settlement was destroyed by fire sometime during 685 to 585 B.C. Soon, rebuilding started. The natural rise of the bluff was refortified with a mixture of soil and clay. Unfortunately, that one also fell to fire.
There are signs of a continuing settlement from the beginning of the first millenium. More tensive building took place during the middle of the first millenium. The edges of the bluff were sharpened, walls were rebuilt and heightened. The site as we see it today dates to those years. Apparently, the site maintained its name, Hill Fort Field, in popular oral tradition, from those years dating back to the years around 500 A.D.
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.