What are the differences in the Constitution of 1812 and the current Constitution of the United States?

The Constitution of 1812 essentially established a constitutional monarchy. Although it retained Roman Catholicism as the established church, it abolished the Inquisition, aristocratic privileges, feudal obligations, and seignorial levies. The Constitution of the United States is the central instrument of American government and the supreme law of the land. For 200 years it has guided the evolution of governmental institutions and has provided the basis for political stability, individual freedom, economic growth, and social progress.Hopes this helps!! :D