in May 3rd, middle school students are mourning the death of the "53 Massacre". The day was the 87th anniversary anniversary of the 53 tragedy. The masses came to the Ji'nan massacre hall in the Baotu Spring Park of Ji'nan, Shandong, to recall the past and cherish the memory of the martyrs. In May 1, 1928, when the northern expedition of the national revolutionary army took up Ji'nan, the Japanese aggressors took the pretext of "protecting the Diaspora" as an excuse to intervene, and killed 17 diplomats, such as Cai Gongshi, the Shandong special representative of the national government in May 3rd, and then seized the whole city and killed nearly 10000 Chinese soldiers and citizens. The "53 Massacre" in Ji'nan, which shocked both China and foreign countries. Xinhua News Agency reporter Zhu Zheng