Narrator: Wang Xiaodong

The successful march of the Northern Expedition in 1926 and the upsurge of the workers' and peasants' movements dealt a heavy blow to the rule of imperialism and feudal warlords in China and threatened the interests of imperialism in China.

In March 1927, the imperialists directly sent troops to suppress the Nanjing incident. At the same time, Chiang Kai shek, in order to realize his counter revolutionary ambitions, colluded with the imperialist and feudal comprador classes and plotted a counter revolutionary coup, and held a series of secret anti Communist meetings.

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In the early morning of April 12, 1927, a large number of armed hooligans of the Green and Red Sect, who had been well prepared, rushed out of the concession and launched a surprise attack on the workers' pickets stationed in Shanghai Federation of Trade Unions and other places.

Wang Xiaodong, former director of Chengde County Environmental Sanitation Management Institute, has retired. He was awarded the title of "the third level of science and technology selection of the" 333 Talents Project in Hebei Province ", and was rated as a model worker of Chengde City in 2009.

The series of "Micro classroom in the air - 100 model workers telling the history of the party" was jointly launched by the Chengde Federation of Trade Unions and the comprehensive radio of Chengde People's Radio.