The international body which was formed in Europe (in 1889) to coordinate the efforts of socialists all over Europe was called

The international body formed in 1889 to coordinate socialist efforts across Europe was the Second International [c1][t2]. Founded at a congress in Paris, it served as a transnational federation of socialist and labor parties, succeeding the First International [t2][t3]. It aimed to demonstrate international solidarity against the capitalist system and coordinate activities among sister parties, such as the German Social Democratic Party (SPD) and the French socialists [t3][t4]. The Second International was instrumental in establishing global traditions like May Day (1889) and International Women's Day (1910) [t6]. While individual parties like the Social Democratic Party (1875) and the Labour Party (1900s) existed at the national level, the Second International was the specific umbrella organization created in 1889 for pan-European coordination [c1][t2]. It remained influential until its collapse at the outbreak of the First World War in 1914 [c1][t5].

Sources

1. [1] History , class XII (Tamilnadu state board 2024 ed.) > Chapter 12: Europe in Turmoil > Karl Marx and Scientific Socialism > p. 181