In 1999, a part of teachers and students of the History Department, Capital Normal University, Carried out archaeological surveys on the site of the Greater Ancient City in Huailai county,Hebei province. They took a preliminary measurement of remaining city-walls, and collected a number of cultural relics from the Eastern Zhou to the Ming-Qing period. The features of the city-site and the collected specimens show that the city may first have been built in the Eastern Zhou, continued to function during Qin-Han times, and was ruined later than the Northern Dynasties period. Reconnaissances were also made on the sites of the Western wall of the Lesser Ancient City east of the above-discribed ruins and the ancient Great Wall at Great Pass village to the southeast of the above ruins. Judging from the discovered objects, the starting point of the two city-walls is no earlier than the Tang and Song period.
