Core Insights - The article highlights the significance of the Liangzhu site, known as "China's First City," due to its extensive archaeological findings, including large city sites, high-status burial grounds, altars, and exquisite jade artifacts, which date back 5,300 to 4,300 years [1][7]. Archaeological History of Liangzhu - The discovery of the Liangzhu site began 90 years ago in 1936 when archaeologist Shi Xinger identified ancient artifacts, leading to extensive excavations that revealed a rich cultural heritage [2][3]. - The Liangzhu culture was formally named in 1959, with ongoing archaeological work clarifying its characteristics, including distinctive pottery and jade artifacts [3][4]. Characteristics of Liangzhu Culture - Liangzhu culture is marked by its advanced jade craftsmanship, with over 7,000 jade items discovered, including ritual objects and burial goods, reflecting a complex social structure and belief system [11][12]. - The site features a sophisticated urban layout, including a central palace area, city walls, and a water management system, indicating a highly organized society [7][8]. Decline of Liangzhu Culture - The decline of Liangzhu culture, which thrived for over a millennium, is attributed to both natural disasters, such as flooding, and social factors, including internal strife and external pressures [13][14][15]. - Evidence suggests that after the culture's decline, remnants of the population may have migrated to other regions, leading to the emergence of new cultural identities, such as the Qianshanyang culture [16][17].