1. In 1854, the first locomotive in California arrived in Sacramento. The engine, named C.P. Huntington, was brought over from the East Coast to help build the Central Pacific Railroad.

2. On March 28, 1890, the Yosemite Valley Railroad Company was incorporated. The company would later become a popular transportation method for tourists visiting Yosemite National Park.

3. In 1936, the iconic Golden Gate Bridge in San Francisco began construction. The bridge, which is now an iconic symbol of California, took 4 years to build and was completed on May 27, 1937.

4. March 28, 1942 marked the beginning of the evacuation of Japanese Americans from their homes and into internment camps during World War II. Over 120,000 Japanese Americans were forced to leave their homes and businesses behind, and were held in camps until 1945.

5. In 1979, the Three Mile Island nuclear accident occurred in Pennsylvania. While not in California, this event spurred anti-nuclear protests and increased resistance to the nuclear industry in the state.