1. In 1969, on July 20, Neil Armstrong became the first person to set foot on the moon during the Apollo 11 mission. This historic moment forever changed the course of space exploration.

2. On July 20, 1822, the first settlers arrived at the Mission San Francisco Solano in Sonoma, California. The mission was established by Franciscan priests to convert the local Native Americans to Christianity.

3. In 1960, on July 20, the State of California officially adopted the California State Song, "I Love You, California." The song was written in 1913 by Francis Bernard Silverwood and is still beloved by many Californians today.

4. On July 20, 1940, the first California State Fair was held in Sacramento. The fair has since become an annual event that draws millions of visitors from around the state and beyond.

5. July 20, 1965, marked the completion of the San Francisco Bay Area Rapid Transit (BART) system's Transbay Tube, which connects San Francisco with the East Bay. The tube is a vital component of the BART system, which is used by millions of commuters each year.