<正>IN the heyday of the majestic Tang Dynasty(618-907),Xuexi Alley,in Lianhu District of Xi’an,Shaanxi Province was home to merchants and tradesmen from home and abroad.Across the country,it was dubbed"Foreign Trade Street,"or sometimes"Diplomacy Avenue."Xuexi Alley was also regarded as the starting point of the Silk Road,the transcontinental cobweb of trade routes that linked the ancient world from China to Rome.Nowadays,the alley