However , further destruction was prevented when Premier Zhou Enlai intervened by sending an army battalion to guard the city .
In 1966 , the Hall of Worshipping Ancestors was modified and some artifacts destroyed for an exhibition of revolutionary mud sculptures .
Further destruction was prevented when Premier Zhou Enlai intervened by sending an army battalion to guard the city .
In 1966 , the Hall of Worshipping Ancestors was modified and some artifacts destroyed for an exhibition of revolutionary mud sculptures .