The 1848 revolution of the liberals referred to widespread movements across Europe, spearheaded by the educated middle classes. They demanded constitutionalism with national unification, aiming to transform monarchies into parliamentary nation-states. Politically, liberals advocated for a written constitution, representative government, freedom of the press, and freedom of association; for many, this included universal male suffrage. Socially, they sought the abolition of serfdom and bonded labour, promoting equality before the law. Economically, liberal ideas centered on freedom of markets, the abolition of state-imposed restrictions on the movement of goods and capital, and the removal of internal customs barriers. These revolutions aimed to establish modern nation-states founded on liberal-democratic principles.