B |     How could a single school become the birthplace of multiple "firsts"? It was here that the first Communist Youth League branch composed of ethnic minority members in the history of the Communist Party of China was established, along with the first Party branch made up of ethnic minority members. It also became an important base for the Communist Party of China's ethnic affairs work during its early years. A century of heritage and dedication continues to thrive. Today, the former site of the Mongolian and Tibetan School has become the country's first Experience Hall for the Community for Chinese Nation, where more stories of ethnic unity continue to unfold.    Producer: Ren Shuai    Planner: Tong Yao    Director: Yao Qi    Cinematographer: Yao Qi, Wu Zhenjun    Packaging: Ma Ji    Voiceover: Yang Yalong    Translation Proofreader：Feng Shuang    Promotion: Chen Weiyi, Li Huiling, Dai Chen                         。