Young Hegelians
In 1844–1845, when Marx was starting to settle his account with Hegel and the Young Hegelians in his writings, he critiqued the Young Hegelians for limiting the horizon of their critique to religion and not taking up the critique of the state and civil society as paramount. Indeed, in 1844, by the look of Marx's writings in that period (most famous of which is the "Economic and Philosophical Manuscripts of 1844", a text that most explicitly elaborated his theory of alienation), Marx's thinking could have taken at least three possible courses: the study of law, religion, and the state; the study of natural philosophy; and the study of political economy.