1. The first recorded earthquake in California occurred on July 9, 1769. It was felt by members of the Portola expedition who were exploring the Los Angeles area.

2. On July 9, 1846, a group of American settlers in Sonoma declared California to be an independent republic. This event, known as the Bear Flag Revolt, was a precursor to the Mexican-American War.

3. In 1850, California was admitted as the 31st state of the United States on July 9th. This followed the California Gold Rush, which brought thousands of settlers to the region, and helped spur the state's development.

4. The USS California, a battleship that served in both World War I and World War II, was launched on July 9, 1919. The ship earned several battle stars for its service during the latter conflict, and was eventually decommissioned in 1947.

5. The California State Legislature designated July 9th as Steve Prefontaine Day in honor of the legendary American distance runner who died in a car accident in 1975. Prefontaine was known for his aggressive running style and his outspokenness on issues such as athlete's rights.