Group 1 - The Silk Road historically served as a vital connection between China and foreign countries, with the "Silk Road: The Network of Routes from Chang'an to the Tianshan Corridor" being listed as a UNESCO World Heritage Site in 2014, including 33 heritage sites such as the ruins of the Weiyang Palace and the Mogao Caves [1] - The establishment of the Silk Road transformed it into a comprehensive trade route, official road, and cultural exchange pathway during the Han Dynasty, particularly through Zhang Qian's missions to the Western Regions [2] - The Han Dynasty set up over 80 relay stations along the route from Chang'an to Dunhuang, which served as crucial safety and navigation points across the vast desert [3] Group 2 - Following the successful UNESCO listing, the protection and management of 22 domestic heritage sites have reached unprecedented levels, integrating new technologies and modern conservation concepts [4] - The ancient Silk Road initiated a significant era of East-West exchanges, and the modern "Belt and Road Initiative" aims to enhance connectivity and cooperation among countries, opening a new chapter in globalization [5] - The ongoing practice of the "Belt and Road Initiative" continues to promote cultural exchanges and mutual learning among different civilizations, contributing to the growth of human civilization [6]