1. On November 28, 1853, the first telegraph line in California was completed, connecting San Francisco and Los Angeles. This technological advancement revolutionized communication in the state and helped facilitate economic growth.

2. In 1925, the California State Highway Commission adopted the numbering system for state highways that is still in use today. This system made it easier for motorists to navigate California's vast network of roads and highways.

3. On November 28, 1960, John F. Kennedy visited Los Angeles and gave a speech at the Beverly Hilton Hotel, where he described his vision for a "New Frontier" in America. This speech would later become one of his most famous and inspiring speeches.

4. In 1978, San Francisco Mayor George Moscone and City Supervisor Harvey Milk were assassinated in City Hall by disgruntled former Supervisor Dan White. The tragedy shocked the city and sparked a wave of activism in the LGBTQ community.

5. On November 28, 2012, the historic Cliff House restaurant in San Francisco reopened after a $21 million renovation. The iconic restaurant, which offers sweeping views of the Pacific Ocean, has been a favorite destination for locals and tourists alike for over a century.