1. The first transcontinental automobile trip in history ended on August 25, 1903, as Horatio Nelson Jackson, Sewall K. Crocker, and Bud, the bulldog finally completed their long journey from San Francisco to New York City.

2. On August 25, 1916, President Woodrow Wilson signed the National Park Service Organic Act, which created the National Park Service to oversee the country's growing system of national parks and monuments, including California's Yosemite, Sequoia, and Kings Canyon National Parks.

3. In 1939, the opening ceremony of the Golden Gate International Exposition was held on Treasure Island in San Francisco Bay on August 25. The exposition was held to celebrate the completion of the Golden Gate Bridge and marked the first time the public could drive over the bridge.

4. August 25, 1950, saw the start of the Korean War, which would become one of the bloodiest conflicts in United States history. The war would eventually involve more than 1.7 million American personnel and result in more than 36,000 US military deaths.

5. The South Bay salt ponds restoration project, the largest tidal wetland restoration project on the West Coast of the United States, was completed on August 25, 2018. The project restored over 15,000 acres of tidal marsh and wetlands in the southern San Francisco Bay, providing habitats for endangered species and improving flood protection for nearby communities.