Below are 5 interesting facts about May 23 in California history:

1. In 1846, the first organized American settlement in California was established at Yerba Buena (now San Francisco) by a party of Mormon pioneers. It was led by Samuel Brannan and included 238 men, women, and children.

2. On May 23, 1907, the San Francisco Board of Supervisors passed the first anti-littering ordinance in the United States. It prohibited the throwing or depositing of waste, trash, or rubbish in any public place in the city.

3. In 1934, Bonnie Parker and Clyde Barrow, notorious outlaw couple, were ambushed and killed by police officers in Bienville Parish, Louisiana. The Barrow gang had committed several bank robberies in California, including one in San Francisco on November 20, 1933.

4. On May 23, 1960, the San Francisco Giants played their first game at the newly built Candlestick Park. They defeated the St. Louis Cardinals 3-1. The stadium, known for its strong winds and cold weather, hosted both the Giants and the NFL's San Francisco 49ers until it was closed in 2014.

5. In 2014, a shooting occurred in Isla Vista, California, near the campus of the University of California, Santa Barbara. Elliot Rodger killed six people and injured fourteen others before taking his own life. The incident sparked a nationwide conversation about gun control and mental health.