Introduction to the venue of the First National Congress of Soviets: The First National Congress of Soviets was held here from November 7 to 20, 1931. 610 representatives attended the meeting. At the meeting, the Provisional Central Government of the Chinese Soviet Republic was established, and important resolutions such as the "Outline of the Constitution of the Chinese Soviet Republic", "Land Law", "Labor Law" and economic issues were adopted, and the first Central Executive Committee was elected.