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| Mexican government (1821–1846) | |
|---|---|
| Name | Mexico (1821–1846) |
| Native name | México |
| Government | Varied: Empire, Provisional Junta, Federal Republic, Centralist Republic |
| Period | 1821–1846 |
| Capital | Mexico City |
| Common languages | Spanish language |
| Religion | Roman Catholic Church |
| Currency | Mexican peso |
Mexican government (1821–1846) The period 1821–1846 encompassed Mexico's transition from colonial rule under the Viceroyalty of New Spain to an independent polity oscillating between monarchical, federal, and centralist regimes. Political life was shaped by competing visions embodied by actors associated with the Plan of Iguala, the Treaty of Córdoba, the First Mexican Empire, the Constitution of 1824, and the Siete Leyes; these influenced relations with external powers such as the United States, the United Kingdom, and Spain.
Independence emerged after the collapse of royal authority in the wake of the Peninsular War and the crisis of the Spanish Constitution of 1812, which catalyzed insurgencies led by figures like Miguel Hidalgo y Costilla, José María Morelos, and later military operators such as Agustín de Iturbide and Vicente Guerrero. The conservative alliance between royalists and former insurgents produced the Plan of Iguala and the subsequent Army of the Three Guarantees, leading to the signing of the Treaty of Córdoba and the proclamation of the First Mexican Empire, recognized de facto by the Provisional Governing Junta in Mexico City.
Following independence, the coronation project for Agustín de Iturbide as emperor collided with republican currents associated with Antonio López de Santa Anna, Guadalupe Victoria, and liberal jurists such as Valentín Gómez Farías. The collapse of the empire after the Plan of Casa Mata installed a Provisional Government and convened a constituent Congress that debated monarchy versus republic, church privileges advocated by the Roman Catholic Church, and military prerogatives connected to the Imperial Spanish Army and the new Mexican Army. Foreign recognition issues involved missions from the United States and the United Kingdom negotiating trade and debt.
The Constitution of 1824 established a federal system modeled on the United States with a separation of powers among a president, bicameral legislature, and judiciary debated by delegates from provinces such as New Spain's former captaincies, Yucatán, and California (Alta California). Presidents like Guadalupe Victoria and Vicente Guerrero presided over fragile party coalitions involving York Rite Freemasonry and Scottish Rite Freemasonry, while uprisings such as the Escándalo de la Profesa and the Battle of Tampico revealed tensions over Church-state relations and regional autonomy in places like Texas and Nuevo León. Economic crises stemming from colonial fiscal legacies, default on public debt owed to Spain and private creditors, and competition with British merchants increased political instability.
Reactionary forces including Santa Anna and centralist congresses drafted the Siete Leyes, abolishing the 1824 federal arrangement and creating the Centralist Republic of Mexico with departments replacing states. The centralist regime provoked secessions and revolts: the Texas Revolution declared by settlers and Texian Army combatants, the Republic of Yucatán's intermittent assertion, and the Federalist Revolt of 1840. Military confrontations like the Pastry War with France and incursions by private filibusters exacerbated diplomatic crises with the United States culminating in events that set the stage for the Mexican–American War. Centralization reconfigured provincial governance, treasury administration, and the balance of power among elites including landowners in Veracruz and merchant networks in Gulf of Mexico ports.
Institutional arrangements swung from imperial councils and a hereditary throne under Iturbide to a republican presidency with ministries overseeing finance, war, and foreign affairs staffed by figures such as Lucas Alamán and Manuel de Mier y Terán. The 1824 Constitution provided for a Chamber of Deputies and Senate of the Republic; the Siete Leyes introduced a unicameral legislature and the Supreme Court of Justice of the Nation underwent redefinition. Local government relied on ayuntamientos and departmental governors appointed under centralism or elected under federalism; ecclesiastical jurisdictions like the Archdiocese of Mexico retained social authority within municipal networks.
Key actors included conservative statesmen such as Lucas Alamán, clerical leaders allied with the Roman Catholic Church, and military caudillos like Antonio López de Santa Anna whose multiple presidencies and pronunciamientos shaped regimes. Liberal reformers and federalists included Miguel Ramos Arizpe, Valentín Gómez Farías, and Melchor Múzquiz, while regional leaders in Puebla, Oaxaca, and Chihuahua forged local power bases. Informal parties coalesced around masonic lodges (York Rite Freemasonry, Scottish Rite Freemasonry), commercial factions linked to British merchants, and military cliques connected to frontier garrisons.
Domestic policy confronted land tenure reform controversies affecting indigenous communities from Morelos to Sonora, clerical privileges questioned by anticlerical liberals, and fiscal reforms promoted by ministers like Lucas Alamán to stabilize the Mexican peso and service foreign debt. Trade liberalization with the United States and United Kingdom competed with protectionist interests in manufacturing centers near Mexico City. Social tensions included caste and racial hierarchies legacies from the Caste system, insurgent veterans’ pensions, and peasant revolts in regions such as Guerrero; migration to Alta California and settlement in Texas sparked demographic shifts. Public security depended on the Mexican Army, militias, and local police institutions under alternating centralist and federal rules.