Indigenous people have inhabited present-day California for thousands of years; fossil records date back to at least 9,000 BCE. Native Californians were largely hunter-gatherers due to the abundance of food available in the region.
The Los Angeles basin was inhabited by people known by the Spanish as "Gabrielinos," with the widely adopted endonym "Tongva," being preferred by many to describe the people of the region.
Prior to Spanish colonization however, there was likely no commonly used name to describe the people of the Los Angeles basin as a whole, and names were primarily used to denote the village a person came from. For example, the people of downtown Los Angeles (Yaanga) would have identified as the Yaavetam and an individual was a Yaavet. There were thousands of communities spread across the Los Angels basin from the Channel islands to the deserts of eastern So Cal that were allied and connected through inter-marriage, trade relations and ceremonial reciprocation.
European contact came in the late 1500's and eventually led to the establishment of the San Gabriel Arcángel mission in 1771 in present-day Los Angeles. The native people were reduced into the mission institutions, and as a result, these very important and cohesive networked relationships began to unravel.