It was split by conflicting schools of socialist thought, including those of Karl Marx, P.-J.Proudhon, Louis Auguste Blanqui, and Mikhail Bakunin.

• 它内部分成许多对立的社会主义思想流派，包括马克思主义、蒲鲁东主义、布朗基主义以及巴枯宁主义等。