On this day, 98 years ago, on February 22, 1927 (January 21, 1927 in the lunar calendar), Shanghai workers held the second armed uprising. Workers, students and citizens confronted military police in the old Ximen area. On February 22, 1927, Shanghai workers held the second armed uprising. Shanghai's industrial and commercial circles, representatives of the Communist Party and the Kuomintang Party established the "Shanghai Citizens 'Provisional Revolutionary Committee" on the 22nd. At 4 p.m. that day, the Shanghai District Committee of the Communist Party of China issued a special urgent notice to mobilize Shanghai citizens to riot at 6 p.m. After the guns of the uprising sounded, workers 'pickets in various districts immediately attacked the military police and launched street battles with the enemy. The second armed uprising of Shanghai workers reached its climax. When they urgently needed assistance from the Northern Expedition troops, Chiang Kai-shek ordered Bai Chongxi's troops who had marched into Jiaxing to stop attacking Shanghai. Niu Yongjian also stood by and stood by, causing the workers' armed forces to fall into the dilemma of fighting alone. Under the cruel suppression of imperialism and reactionary warlords, the "Shanghai City Provisional Revolutionary Committee" decided to immediately stop the second armed uprising. Massacre insurgent workers