The natives often ate acorns that they turned into soups, cakes and bread.

The former Spanish settlement at Sajavit lies within that area occupied during the late Paleoindian period and continuing on into the present day by the Native American society commonly known as the Juaneño; the name denotes those people who were ministered by the priests at Mission San Juan Capistrano.
Many contemporary Juaneño, who identify themselves as descendants of the indigenous society living in the local San Juan and San Mateo Creek drainage areas, have adopted the indigenous term Acjachemen.
Their language was related to the Luiseño language spoken by the nearby Luiseño tribe.

The Acjachemen territory extended from Las Pulgas Creek in northern San Diego County up into the San Joaquin Hills along Orange County's central coast, and inland from the Pacific Ocean up into the Santa Ana Mountains.
The bulk of the population occupied the outlets of two large creeks, San Juan Creek (and its major tributary, Trabuco Creek) and San Mateo Creek (combined with Arroyo San Onofre, which drained into the ocean at the same point).
The highest concentration of villages was along the lower San Juan, where Mission San Juan Capistrano was ultimately situated and is preserved today.
The Acjachemen resided in permanent, well-defined villages and seasonal camps.
Village populations ranged from between 35 and 300 inhabitants, consisting of a single lineage in the smaller villages, and of a dominant clan joined with other families in the larger settlements.

Each clan had its own resource territory and was "politically" independent; ties to other villages were maintained through economic, religious, and social networks in the immediate region.
The elite class (composed chiefly families, lineage heads, and other ceremonial specialists), a middle class (established and successful families), and people of disconnected or wandering families and captives of war comprised the three hierarchical social classes.
Native leadership consisted of the Nota, or clan chief, who conducted community rites and regulated ceremonial life in conjunction with the council of elders (Puuplem), which was made up of lineage heads and ceremonial specialists in their own right.
This body decided upon matters of the community, which were then carried out by the Nota and his underlings.
While the placement of residential huts in a village was not regulated, the ceremonial enclosure (Vanquech) and the chief's home were most often centrally located.

Much has been discovered about the native inhabitants in recent centuries, thanks in part to the efforts of the Spanish explorer Juan Rodríguez Cabrillo, who documented his observations of life in the coastal villages he encountered along the Southern California coast in October 1542.
Fray Gerónimo Boscana, a Franciscan scholar who was stationed at San Juan Capistrano for more than a decade beginning in 1812, compiled what is widely considered to be the most comprehensive study of prehistoric religious practices in the San Juan Capistrano valley.
Religious knowledge was secret, and the prevalent religion, called Chinigchinich, placed village chiefs in the position of religious leaders, an arrangement that gave the chiefs broad power over their people.
Boscana divided the Acjachemen into two classes: the "Playanos" (who lived along the coast) and the "Serranos" (who inhabited the mountains, some three to four leagues from the Mission).
The religious beliefs of the two groups as related to creation differed quite profoundly.
The Playanos held that an all-powerful and unseen being called "Nocuma" brought about the earth and the sea, together with all of the trees, plants, and animals of sky, land, and water contained therein.
The Serranos, on the other hand, believed in two separate but related existences: the "existence above" and the "existence below."
These states of being were "altogether explicable and indefinite" (like brother and sister), and it was the fruits of the union of these two entities that created "...the rocks and sands of the earth;
The natives often ate acorns that they turned into soups, cakes and bread.
The former Spanish settlement at Sajavit lies within that area occupied during the late Paleoindian period and continuing on into the present day by the Native American society commonly known as the Juaneño; the name denotes those people who were ministered by the priests at Mission San Juan Capistrano. Many contemporary Juaneño, who identify themselves as descendants of the indigenous society living in the local San Juan and San Mateo Creek drainage areas, have adopted the indigenous term Acjachemen. Their language was related to the Luiseño language spoken by the nearby Luiseño tribe.
The Acjachemen territory extended from Las Pulgas Creek in northern San Diego County up into the San Joaquin Hills along Orange County's central coast, and inland from the Pacific Ocean up into the Santa Ana Mountains. The bulk of the population occupied the outlets of two large creeks, San Juan Creek (and its major tributary, Trabuco Creek) and San Mateo Creek (combined with Arroyo San Onofre, which drained into the ocean at the same point). The highest concentration of villages was along the lower San Juan, where Mission San Juan Capistrano was ultimately situated and is preserved today. The Acjachemen resided in permanent, well-defined villages and seasonal camps. Village populations ranged from between 35 and 300 inhabitants, consisting of a single lineage in the smaller villages, and of a dominant clan joined with other families in the larger settlements.
Each clan had its own resource territory and was "politically" independent; ties to other villages were maintained through economic, religious, and social networks in the immediate region. The elite class (composed chiefly families, lineage heads, and other ceremonial specialists), a middle class (established and successful families), and people of disconnected or wandering families and captives of war comprised the three hierarchical social classes. Native leadership consisted of the Nota, or clan chief, who conducted community rites and regulated ceremonial life in conjunction with the council of elders (Puuplem), which was made up of lineage heads and ceremonial specialists in their own right. This body decided upon matters of the community, which were then carried out by the Nota and his underlings. While the placement of residential huts in a village was not regulated, the ceremonial enclosure (Vanquech) and the chief's home were most often centrally located.
Much has been discovered about the native inhabitants in recent centuries, thanks in part to the efforts of the Spanish explorer Juan Rodríguez Cabrillo, who documented his observations of life in the coastal villages he encountered along the Southern California coast in October 1542. Fray Gerónimo Boscana, a Franciscan scholar who was stationed at San Juan Capistrano for more than a decade beginning in 1812, compiled what is widely considered to be the most comprehensive study of prehistoric religious practices in the San Juan Capistrano valley. Religious knowledge was secret, and the prevalent religion, called Chinigchinich, placed village chiefs in the position of religious leaders, an arrangement that gave the chiefs broad power over their people. Boscana divided the Acjachemen into two classes: the "Playanos" (who lived along the coast) and the "Serranos" (who inhabited the mountains, some three to four leagues from the Mission). The religious beliefs of the two groups as related to creation differed quite profoundly. The Playanos held that an all-powerful and unseen being called "Nocuma" brought about the earth and the sea, together with all of the trees, plants, and animals of sky, land, and water contained therein. The Serranos, on the other hand, believed in two separate but related existences: the "existence above" and the "existence below." These states of being were "altogether explicable and indefinite" (like brother and sister), and it was the fruits of the union of these two entities that created "...the rocks and sands of the earth; 
Mission San Juan Capistrano