Almost from the beginning of Spain’s presence in the New World, the Spanish relied on missions to extend their influence and reach.

In April 1519, Hernán Cortés landed on the Gulf Coast of what is now Mexico. By 1521, Spanish forces had defeated the Aztec Empire. Just a few years later, in 1524, the first Spanish missions were established by Franciscan missionaries of the Catholic Church.

The partnership between the Catholic Church and the Spanish government had two main purposes. Spain was a deeply Catholic country, and the king believed his right to rule came from God. As a result, he also believed it was his duty to spread the Catholic faith.

At the same time, the missions aimed to transform Indigenous people into Spanish subjects. Missionaries taught skills such as farming, weaving, and construction, while also introducing Spanish language, religion, and customs.

This approach differed from that of the English in present-day United States and Canada. While English settlers often displaced or killed Native populations, the Spanish generally sought to incorporate Indigenous people into their colonial society. However, the mission system was not entirely benevolent—missionaries could be harsh and exploitative. (See Impact on Indigenous People.)

Early missions in Mexico were typically built in or near existing Indigenous cities and population centers in order to reach as many people as possible. Over time, more Spanish settlers arrived, intermarried with Indigenous communities, and helped form growing colonial cities. In 1551, the first university in the New World – the Real y Pontificia Universidad de México – was founded in Mexico City. (See Life in Colonial Mexico.)

Expansion

Over time, Spain expanded its territory northward. Small groups of missionaries and soldiers moved into more sparsely populated regions to convert Indigenous people and establish new settlements. This process continued for centuries, spreading Spanish culture throughout Mexico and into present-day New Mexico, Arizona, and Texas. California became the final stage of this expansion.

The push into California was partly motivated by concerns about other world powers. Russia had established a fur trade along the Pacific coast (see A Russian Presence in California), and the English navy was increasingly active in the region. British explorer James Cook sailed along the Pacific coast in the 1770s, reinforcing Spanish fears that other nations might claim the territory.

Settling California

The California missions represented the final expansion of the Spanish Empire. From 1769 to 1823, Spanish soldiers and monks built a total of 21 Missions and 5 Presidios (military forts), stretching North from Mexico, along the Pacific coast, through the territory that was then known as Alta California.

The Spanish missions were part of a broader, coordinated strategy to colonize Alta California (now the U.S. state of California) through a system of exploratory expeditions, religious missions, military presidios, and civilian pueblos. Unlike many other European settlers in North America, the Spanish did not seek to kill or displace Indigenous peoples. Instead, their goal was to convert them to Catholicism, instruct them in European agricultural practices and trades, and integrate them into colonial society as Spanish subjects.

When Mexico rebelled against Spain –  which culminated in Mexico’s independence in 1821 –  the Spanish presence in North America came to an end. In 1824, the expansion of the mission system was halted. The missions were secularized in 1833, bringing an end to a critical chapter in California’s history (most of the missions were later returned to the Catholic Church).

Over a short period – little more than 50 years – the Spanish brought a new culture to California, spreading European religion, agricultural practices and trades, and eventually forms of government. Together, the missions performed over 87,000 baptisms, and 24,000 marriages. The mission communities kept over 150,000 cattle, and grew 150,000,000 pounds of wheat.

Sadly, European diseases, carried by the settlers, killed thousands of California Indians. This, along with military victories of the Spanish over natives, established permanent dominance of European civilization.

The settlements around the missions became the seeds of modern California’s major cities. The trail connecting the missions, El Camino Real, became California’s first “highway,” and its route is closely followed by modern Highway 101.

California cities bear Spanish names.  The designs of the missions still influence California architecture, and Mexican food is a staple in California.  About 30% of California’s people are descended from Spanish and Mexican settlers.

Secularization

In 1834, the government of Mexico ordered the secularization of the missions. The mission buildings and the surrounding lands were removed from control of the church.  They were supposed to be turned over to the Indians who had served the missions. However, very few native people actually received land grants.  Most of the lands were either given or sold to Spanish/Mexican settlers and large land owners.

Sadly, the Indians who did receive grants were ill prepared to deal with the complexity of modern society, and for the most part they quickly lost control of the lands to speculators and swindlers.

After California became a US state, President Abraham Lincoln returned most of the missions to the Catholic Church. However, the once-extensive land holdings were not included.  Secularization brought an effective end to the age of the California missions.

The Missions Today

Today, all 21 of the mission sites can be visited, and most are still in use as churches.

Unfortunately, many of the missions are in serious need of repair.  Some are in ruins, and several are close to collapse.  A few have been restored or entirely rebuilt, and two are California State historical parks (San Francisco Solano and La Purísima Concepción).

Regardless of their state of repair, a visit to a California mission provides a fascinating look into California’s early history.

More Spanish Missions in North America

The California missions were not unique… Spain built missions throughout Mexico and the southwest to convert the Indians to Christianity and to consolidate their hold on territory.

Today it is possible to visit missions (or mission ruins) in the US states of  California, New Mexico, Arizona, and Texas, and in the Mexican states of Baja California, Chihuahua , Coahuila, Nuevo León, Sinaloa, and Sonora.