The Mexican Secularization Act of 1833, officially called the Decree for the Secularization of the Missions of California, was an act passed by the Congress of the Union of the First Mexican Republic which secularized the Californian missions. The act nationalized the missions, transferring their ownership from the Franciscan Order of the Catholic Church to the Mexican authorities.

The act was passed twelve years after Mexico won its independence from Spain in 1821. Mexico feared Spain would continue to have influence and power in California because most of the Spanish missions in California remained loyal to the Roman Catholic Church in Spain. As the new Mexican republic matured, calls for the secularization ("disestablishment") of the missions increased.

Mexican secularization act of 1833

Once fully implemented, the secularization act took away much of the California Mission land and sold it or gave it away in large grants called ranchos. Secularization also emancipated Indigenous peoples of California from the missions and closed the monjeríos, although only a minority of Indigenous peoples were distributed land grants, which left many of them landless to work the ranchos.

Mexican secularization act of 1833

Background

The Spanish missions in Alta California were a series of 21 religious and military outposts; established by Catholic priests of the Franciscan order between 1769 and 1823 for the purpose of spreading Christianity among the local Native Americans. The missions were part of the first major effort by Europeans to colonize the Pacific Coast region, the most northern and western parts of Spain's North American land claims. The settlers introduced European fruits, vegetables, cattle, horses, ranching and technology into the Alta California region and to the Mission Indians. The El Camino Real road connected the missions from San Diego to Mission San Francisco Solano, in Sonoma, a length of . Between 1683 and 1834, Jesuit and Franciscan missionaries established a series of religious outposts from today's Baja California and Baja California Sur into present-day California.

Mexican secularization act of 1833

Proclamation of Emancipation

José María de Echeandía, the first Mexican-born, elected Governor of Alta California issued a "Proclamation of Emancipation" (or "Prevenciónes de Emancipacion") on July 25, 1826. All Indians within the military districts of San Diego, Santa Barbara, and Monterey who were found qualified were freed from missionary rule and made eligible to become Mexican citizens. Those who wished to remain under mission tutelage (guardianship) were exempted from most forms of corporal punishment. By 1830 even those new to California appeared confident in their own abilities to operate the mission ranches and farms independently; the padres, however, doubted the capabilities of their charges in this regard. In 1831, the number of Indians under missionary control in all of Upper-Alta California was about 18,683, while garrison soldiers, free settlers, and "other classes" totaled 4,342.

New immigration, of both Mexican and foreign origins, increased pressure on the Alta California government to seize the Church-controlled mission properties and dispossess the natives in accordance with Echeandía's directive. Despite the fact that Echeandía's emancipation plan was met with little encouragement from the newcomers who populated the southern missions, he was nonetheless determined to test the scheme on a large scale at Mission San Juan Capistrano. To that end, he appointed a number of comisionados (commissioners) to oversee the emancipation of the Indians.

The Mexican government passed legislation on December 20, 1827, that mandated the expulsion of all Spaniards younger than 60 years of age from Mexican territories. Spaniards could pose a threat to Mexico because Spain did not recognize Mexican independence and attempted to regain control over its former colony. Governor Echeandía nevertheless intervened on behalf of some Franciscans to prevent their deportation once the law took effect in California.

Secularization Act

Governor José Figueroa, who took office in 1833, initially attempted to keep the mission system intact, but after the Mexican Congress passed its Decree for the Secularization of the Missions of the Californias on August 17, 1833, he took action to start secularization enactment. In 1833, Figueroa replaced the Spanish-born Franciscan padres at all of the settlements north of Mission San Antonio de Padua with Mexican-born Franciscan priests from the College of Guadalupe de Zacatecas. In response, Father-Presidente Narciso Durán transferred the headquarters of the Alta California Mission System to Mission Santa Bárbara, where it remained until 1846.