Core Viewpoint - The Liulihe site in Beijing is recognized as the largest known Western Zhou period site in the Yanshan southern foothills, showcasing significant archaeological findings that enhance the understanding of early urban civilization in Beijing, dating back over 3,000 years [5][14]. Archaeological Significance - The Liulihe site has undergone extensive archaeological excavations since its discovery in 1945, yielding numerous artifacts including exquisite bronze vessels, lacquered wooden items, jade, primitive porcelain, and pottery, with notable pieces like the Jin Ding and Bo Ju Li [5][6]. - The site has been confirmed as the capital of the Yan state during the Western Zhou period, with evidence supporting its historical significance in the context of early urban development in Beijing [9][14]. Excavation Developments - Recent excavations have revealed the existence of an outer city wall and moat, expanding the site’s area from less than 600,000 square meters to approximately 1,000,000 square meters, indicating a complex urban structure [6][10]. - The discovery of multiple layers of deposits within the moat allows researchers to trace the construction and abandonment phases of the outer city [6][10]. Multidisciplinary Approach - The archaeological work at Liulihe involves collaboration among various institutions, employing techniques such as carbon-14 dating, isotopic analysis, and organic residue analysis to gain insights into the site's historical context [10][11]. - The establishment of a geographic information system for the site has enabled the creation of a three-dimensional model, enhancing the understanding of the spatial distribution of archaeological features [11]. Educational and Cultural Impact - The Liulihe site serves as a platform for public archaeology, engaging local communities and international students in understanding the historical and cultural significance of the site [12][13]. - Plans for the construction of an archaeological park at the site aim to promote awareness and appreciation of Beijing's ancient history, making it a vital educational resource [13].