Archaeologists announce discovery of underwater man-made wall 2002/11/26 The China Post staff Underwater archaeologists yesterday announced the discovery of a man-made wall submerged under the waters of the Pescadores Islands that could be at least six and seven thousand years old. Steve Shieh, the head of the planning committee for the Taiwan Underwater Archaeology Institute, said the wall was discovered to the northwest of Tong-chi Island in the Pescadores towards the end of September. The stone wall, with an average height of one meter and a width of 50 centimeters, covers a distance of over 100 meters, Hsieh said. The...