[File:Political divisions of Mexico 1836-1845 (location map scheme).svg|thumb|right|300px|The Centralist Republic with the separatist movements generated by the dissolution of the Federal Republic. ]] The Centralist Republic of Mexico , officially the Mexican Republic was a unitary political regime established in Mexico on October 23, 1835, after the repeal of the Constitution of 1824. The unitary regime was formally established on December 30, 1836, with the enactment of the seven constitutional laws. The centralist Republic lasted for almost eleven years. On August 22, 1846, acting President José Mariano Salas, issued the decree that restored the Constitution of 1824 and with this, the return to federalism.