Geographical Location - California
- Grass House
- Hacker Cripples Major Web Sites and Reveals Internet Vulnerability
- Hale Constructs the Largest Telescope of the Time
- Hale Discovers Strong Magnetic Fields in Sunspots
- Hale Establishes Mount Wilson Observatory
- Hale Oversees the Installation of the Hooker Telescope on Mount Wilson
- Hofstadter Discovers That Protons and Neutrons Each Have a Structure
- Hokan language family
- Horses
- Hubble Confirms the Expanding Universe
- Hubble Demonstrates That Other Galaxies Are Independent Systems
- Hubble Determines the Distance to the Andromeda Nebula
- Huchnom
- The Hula Hoop Is Marketed
- Hunting and Gathering
- Hupa
- Indian-white relations: Spanish colonial
- INS Frees Thai Workers Held Captive in Clothes Factory
- Intel Unveils 1.5 Gigahertz Microprocessor
- The John Muir Trail Is Completed
- Juaneño
- Kamia
- Karok
- Kawaiisu
- Kesterson National Wildlife Refuge Is Poisoned
- Kroc Agrees to Franchise McDonald’s
- Larson Constructs the First Modern Polygraph
- Lasers Are Used in Eye Surgery for the First Time
- Lawrence Develops the Cyclotron
- Lemaître Proposes the Big Bang Theory
- Li Isolates the Human Growth Hormone
- The Liquid Bubble Chamber Is Developed
- Lyng v. Northwest Indian Cemetery Protective Association
- Maidu
- Maru Cult
- Mathematics
- Mattole
- Menses and Menstruation
- Mexican-American War
- Michelson Measures the Diameter of a Star
- The Microprocessor “Computer on a Chip” Is Introduced
- Middens
- Missions and Missionaries
- Miwok
- Modoc War
- Mojave
- The Monterey Pop Festival Inaugurates the “Summer of Love”
- Napster Agrees to Charge Fees for Downloading Music over Internet
- Native Cultures Flourish on the North Pacific Coast
- Occupation of California and the Southwest
