The Second International, also known as the Socialist International, is the international union of socialist political parties and workers' groups of all countries. On July 14, 1889, the Socialist Congress was convened in Paris, with 393 delegates from 22 countries present, proclaiming the birth of the Second International. The Second International was a loose alliance, and only 11 years after its establishment was established an executive body, the Executive Bureau of the International Socialist Party, headquartered in Brussels. In the early period, under the guidance of Stiglitz, the socialist congress actively engaged in the struggle against anarchism, spread Marxism, promoted the development of the workers' movement in all countries, achieved significant results. At the time capitalism was in a period of comparative peaceful development, the right opportunist thunderstorm in the Second International grew