Core Points - The "Taibao Yongyan - Fangshan Liulihe Site Special Exhibition" has opened at the Capital Museum, focusing on the Liulihe site, which is the largest known Western Zhou site in the Yanshan southern foothills and has the longest excavation history in China [1][3] - The exhibition highlights the Liulihe site as evidence of the Western Zhou feudal system and the capital of the Yan state, pushing the history of Beijing's city construction back over 3,000 years, earning it the title "Source of Beijing City" [3] - The exhibition features 180 selected precious cultural relics, with 113 items being exhibited for the first time, marking a significant proportion in recent exhibitions at the Capital Museum [3] Exhibition Details - The exhibition includes important artifacts such as the Jin Ding and Bo Ju Ge, as well as items that substantiate the Yan state's initial feudal status, like Ke Le and Ke Lei [3] - This is the first large-scale gathering of artifacts unearthed from the Liulihe site since the 1970s, providing a rare opportunity for public viewing [3] - Educational activities, such as "Meeting Bo Ju Ge," are planned during the exhibition to engage audiences, especially families, in understanding the exquisite bronze casting techniques and the profound cultural significance of the Western Zhou period [3] - The exhibition will run until November 28, 2025 [3]