The article is devoted to one of the most important problems of legal theory, namely, the problem of "just law." All great revolutions pursued the objective of achieving social justice that was primarily associated with the equality of all before the law. To a large extent, this explains surprising overlapping of algorithms in compliance with which the revolutions developed having passed through the same stages of formation. During the revolution, the idea of equality is often replaced by the idea of freedom. The clash of the old departing legal order with the new revolutionary legislative norms created a specific situation, a state of emergency, i.e. an anomie, when the operation of any law was suspended. However, the statehood itself, despite the change in its form, continued to exist. The need to create a new law required the development of a new legal order; as the result of the development of law, constitutive and regulatory acts that envisaged the newly established order were adopted. The author focuses on the historical experience of the English and French revolutions comparing it with the experience of other revolutions.