On this day, 98 years ago, on May 21, 1927 (April 21, 1927, the lunar calendar), Xu Kexiang launched the "Mar-Day Incident" in Changsha. Propaganda poster of the Peasants Association of Hunan Province when attacking local tyrants In 1927, under the conspiracy of He Jian, commander of the 35th Army of the Kuomintang, Xu Kexiang, a reactionary Kuomintang officer stationed in Changsha, launched a counter-revolutionary rebellion on May 21 that killed Communist Party members and workers and peasants. Because the Chinese telegram used the rhyme "Ma" to represent the 21st on the day of the incident, this incident was called the "Ma Day Incident." "He Jian, commander of the 35th Army, who was originally opposed to Sun Yat-sen's three major policies and had deep hatred for the workers and peasants movement on the two lakes, at the instigation of Chiang Kai-shek, convened a meeting of senior generals in Hankou as early as the end of April 1927 and invited a group of reactionary officers to secretly discuss a plot to resist the Communist Party and clear the Party, stage a military rebellion, and overthrow the Wuhan National Government. On May 17, Xia Douyin, commander of the 14th Independent Division, publicly betrayed the revolution. He Jian immediately responded and led his troops to carry out massacres across Hunan. They first mutilated the chairman of the Linxiang Farmers Association and the chairman of the Changde Suburban Farmers Association, and then occupied the Yiyang County Trade Union, Farmers Association and other revolutionary organs, and seized the guns of the Peasant Self-Defense Forces and Workers 'Pickets. On the morning of May 21, He Jian led his troops and surrounded all revolutionary groups in Changde. The workers 'picket resisted and came under machine-gun fire. At that time, more than 80 Communist Party members and revolutionary people were killed. That night, Xu Kexiang, commander of the 33rd Regiment under He Jian's command in Changsha, led more than 1000 troops to launch a counter-revolutionary coup and launched a surprise attack on the revolutionary party and the workers and peasants. Changsha City suddenly burst into flames, and gunshots burst out in all directions. Amid the white terror, the reactionary army launched an attack on the Kuomintang Provincial Party Headquarters, Provincial and Municipal Federation of Trade Unions, the Headquarters of the Peasant Self-Defense Forces, the Provincial Party School, the Special Court and other organs, groups, as well as the workers 'pickets, seized the guns of the workers' pickets and the Peasant Self-Defense Forces, released the local tyrants and evil gentry and other criminals imprisoned in prison, and tore up the slogans of "Support the Wuhan National Government","Down with Chiang Kai-shek", and "Eradicate the local tyrants and evil gentry." They were replaced with various reactionary slogans. A large number of Communist Party, workers and peasants, and young students fell in blood. This group of rebels gathered at the martial law headquarters in Changsha and established the so-called "Provisional Party Rescue Committee of the China Kuomintang in Hunan Province" as an open command authority for counter-revolutionary rebellion. After the "Ma Ri Incident", white terror spread throughout Hunan. The reactionaries killed people while blaming the Communist Party for the blame. Rumors said that this incident was all the result of the Communist Party's orders, a "military-civilian conflict", and a "workers and peasants besieged the headquarters of the 33rd Regiment and robbed guns." The Kuomintang reactionaries in Wuhan also made widespread rumors that if there were no worker-peasant movement, Xia Douyin and Xu Kexiang would not have betrayed. In less than a month after the "Mar-Day Incident", more than 10,000 Communist Party members and revolutionary people were brutally killed near Changsha, seriously endangering the revolutionary cause. Since then, Communist Party members and workers and peasants in Changsha and other places persisted in revolution under extremely difficult conditions and launched an indomitable struggle against the reactionaries.