97 years ago today, on May 3, 1928 (March 14, 1928 in the lunar calendar), the Japanese army made the "May 3rd" tragedy in Jinan. The Japanese bombarded Jinan City. On May 3, 1928, the Japanese army made the "May 3rd" tragedy in Jinan. When Cai Gong was killed, the whole city was slaughtered. On May 3, 1928, the propagandists of the Northern Expedition Army posted signs in Weijiazhuang, Jinan. The Japanese soldiers unreasonably obstructed and shot, causing several casualties. On the same day, a Chinese soldier passed by the Japanese guard area with his bare hands. Due to a misunderstanding with the Japanese soldiers due to language barrier, the Japanese soldiers shot and killed him. The Japanese soldiers in various places also fired guns when they heard the sound of gunfire. The Japanese surrounded the first battalion of the Northern Expeditionary Army stationed at the License Tax Bureau. The battalion was disarmed and captured by the Japanese because it did not receive an order to resist. The Japanese also disarmed the prisoners of the Northern Expeditionary Army in Nan Renyili and Wumao Road. All Chinese who encountered the Japanese were shot. The Northern Expeditionary Army entered Jinan City on May 3. Cai Gongshi, the foreign affairs director of the Kuomintang Field Committee and the special negotiator in Shandong, followed the order of the Field Committee and led the staff to the negotiation office at 8 am to take over the office. At 9 pm, more than 30 Japanese troops broke into the negotiation office and looted, tore up the Kuomintang Qingtian Bairi flag and the portrait of Mr. Sun Yat-sen, and left diplomatic documents all over the ground. Cai Gongshi reasoned to him in Japanese: "This is a diplomatic organ of the Chinese government, a non-combat unit, the Imperial Japanese Army. It is well-educated and well-versed in affairs. Everyone knows that it should respect good-neighborly friendship and diplomatic courtesy..." The Japanese army did not wait for Cai to finish speaking. After knocking Cai to the ground with the butt of a gun, they tied up all 28 people in the headquarters, pulled them to the courtyard, tore off all their clothes, beat them, and stabbed them with bayonets. Cai Gongshi A Japanese soldier cut off Cai Gongshi's ears, and Cai Gongshi shouted: "The Japanese killed me! The Japanese cut off their ears and gouged their eyes on me like the ancient clan society treated prisoners!" The Japanese soldiers turned around and killed the other diplomats who were tied up. After killing them, they came back and cut off Cai's nose. The other Japanese soldiers smiled and admired. After more than an hour of torture, Cai Gongshi was shot. All 28 people were killed in the summer. At 11 o'clock in the evening, Chiang Kai-shek sent Xiong Shihui to the Japanese army headquarters to negotiate. During the consultation, the Japanese army fired artillery and bombarded the Chinese radio station, and many soldiers guarding Taiwan were killed. The Japanese army also surrounded and shot at the office of the Foreign Minister of the Nanjing government in the office of the Jinpu Railway Bureau. Huang was forced to hide. After the fall of Jinan, the Japanese army tied up all the captured Chinese soldiers. When the tragedy happened, the citizens were caught off guard and many people fled to the post office. The Japanese surrounded the post office, tied up the Chinese people one by one, imprisoned them in the basement, cut off their food and drink, and beat them all day long, and sometimes they were taken out and shot. There were about 1,600 prisoners, and the situation was unspeakable. The Japanese army also robbed all the cash and stamps in the post office. The Japanese guarded the captured Chinese soldiers. On May 5, Chiang Kai-shek left Jinan City to the party house in Jixi. He discussed the Northern Expedition with Feng Yuxiang, the commander of the Second Army, and decided to bypass it.