Answer:
The natives died from European disease
Explain:
Native American period (about 10,000 years ago until 1542), the European exploration period (1542–1769), the Spanish colonial period (1769–1821), the Mexican period (1821–1848), and the United States statehood (September 9, 1850–present). California was one of the most culturally and linguistically diverse areas in pre-Columbian North America. After contact with Spanish explorers, most of the Native Americans died out from European diseases.
