1. In 1848, California became part of the United States as a result of the Treaty of Guadalupe Hidalgo, which ended the Mexican-American War. This marked an important milestone in the state’s history and set the stage for its rapid growth and development in the years to come.

2. On May 29, 1915, a devastating earthquake struck the town of Avezzano in central Italy, killing more than 30,000 people. Many Californians were deeply impacted by the tragedy, and efforts were made to provide aid and support to the affected communities.

3. In 1924, the Golden Gate Bridge was approved for construction in San Francisco. The bridge, which spans the Golden Gate strait and connects San Francisco to Marin County, remains a beloved symbol of California and a popular tourist destination.

4. On May 29, 1942, the War Production Board announced a rationing program for rubber, which was in short supply due to the ongoing conflict in the Pacific. This led to a widespread effort to conserve rubber and promote alternative materials, such as synthetic rubber and reclaimed tires.

5. In 1987, California Governor George Deukmejian signed the California Clean Indoor Air Act, which banned smoking in most public buildings and workplaces. The law was an important milestone in the state’s efforts to improve public health and reduce the harmful effects of secondhand smoke.