California ( ) is a U.S. state on the West Coast of the United States, along the Pacific Ocean. It is bordered by Oregon to the north, Nevada to the east, Arizona to the southeast, and to the south the Mexican state of Baja California. California is the most populous U.S. state. Its four largest cities are Los Angeles, San Diego, San Jose, and San Francisco. It is known for its varied climate and geography as well as its diverse population.

The area known as Alta California was colonized by the Spanish Empire beginning in the late 18th century. It and the rest of Mexico became an independent republic in 1821. In 1846 California broke away from Mexico, and after the Mexican-American War, Mexico ceded California to the United States. California was admitted to the United States on September 9, 1850.

It is the third-largest U.S. state by land area. Its geography ranges from the Pacific coast to the Sierra Nevada mountains in the east, to Mojave desert areas in the southeast and the Redwood-Douglas fir forests of the northwest. The center of the state is dominated by the Central Valley, one of the most productive agricultural areas in the world.

The California Gold Rush (1848-1855) dramatically changed California with a large influx of people and an economic boom. The early 20th century was marked by Los Angeles becoming the center of the entertainment industry, in addition to the growth of a large tourism sector in the state. Along with California's prosperous agricultural industry, other industries include aerospace, petroleum, and computer and information technology. California ranks amongst the ten largest economies in the world, and were it a separate country, it would be 35th among the most populous countries, just behind Kenya.

Etymology

main: Origin of the name California The word California originally referred to the entire region composed of what is today the state of California, plus all or parts of Nevada, Utah, Arizona, and Wyoming, and the Mexican peninsula of Baja California.

The name California is most commonly believed to have derived from a storied paradise peopled by black Amazons and ruled by Queen Califia. The myth of Califia is recorded in a 1510 work The Exploits of Esplandian, written as a sequel to Amadís de Gaula by Spanish adventure writer García Ordóñez Rodríguez de Montalvo. The kingdom of Queen Califia, according to Montalvo, was said to be a remote land inhabited by griffins and other strange beasts and rich in gold.

"Know ye that at the right hand of the Indies there is an island named California, very close to that part of the terrestrial Paradise, which was inhabited by black women, without a single man among them, and that they lived in the manner of Amazons. They were robust of body, with strong and passionate hearts and great virtues. The island itself is one of the wildest in the world on account of the bold and craggy rocks. Their weapons were all made of gold. The island everywhere abounds with gold and precious stones, and upon it no other metal was found."