in Fujian, were also imported, indicating the tiny kingdom's extensive trade and diplomatic connections; items from Korea, in particular, are known to have been quite rare and expensive in Okinawa for many centuries, and have been excavated only in the most elite of sites. The Buddhist temples on the site indicate strong political and cultural connections to Japan, and the large pond or lake below the castle is a common symbol of elite power and prestige throughout East Asia. References Sources Pearson, Richard (2001). "Archaeological Perspectives on the Rise of the Okinawan State." Journal of Archaeological Research, Vol 9, No 3. pp270–271. Former castles in Japan Castles in Okinawa Prefecture Historic Sites of Japan