One of the roots of popular education was the Condorcet report during the 1789 French Revolution. These ideas became an important component of the Republican and Socialist movement. Following the split of the First International at the 1872 Hague Congress between the "anti-authoritarian socialists" (anarchists) and the Marxists, popular education remained an important part of the workers' movement, in particular in the anarcho-syndicalist movement, strong in France, Spain and Italy. It was one of the important theme treated during the 1907 International Anarchist Congress of Amsterdam.