About America

The United States of America is a federal constitutional republic comprising fifty states and a federal district. The country is situated almost entirely in the western hemisphere: its forty-eight contiguous states and Washington, D.C., the capital district, lie in central North America between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south; the state of Alaska is in the northwest of the continent with Canada to its east, and the state of Hawaii is in the mid-Pacific. The United States also possesses fourteen territories, or insular areas, that are scattered around the Caribbean and Pacific.

At 3.79 million square miles (9.83 million km²) and with over 300 million people, the United States is the third or fourth largest country by total area, and third largest by land area and by population. The United States is one of the world's most ethnically diverse nations, the product of large-scale immigration from many countries. Its national economy is the largest in the world, with a nominal 2006 gross domestic product (GDP) of more than US$13 trillion.

The nation was founded by the thirteen colonies of Great Britain located along the Atlantic seaboard. After proclaiming themselves as "states," they issued the Declaration of Independence on July 4, 1776. The rebellious states defeated Britain in the American Revolutionary War, the first successful colonial war of independence.

A federal convention adopted the current United States Constitution on September 17, 1787; its ratification the following year made the states part of a single republic. The Bill of Rights, comprising ten constitutional amendments, was ratified in 1791. In the nineteenth century, the United States acquired land from France, Spain, Mexico, and Russia, and annexed the Republic of Texas and the Republic of Hawaii. The American Civil War ended slavery in the United States and prevented a permanent split of the country. The Spanish-American War and World War I confirmed its status as a military power. In 1945, the United States emerged from World War II as the first country with nuclear weapons and a permanent member of the United Nations Security Council. The sole remaining superpower in the post–Cold War era, the United States is perceived by many as the dominant economic, political, cultural, and military force in the world

About California

     The State of California (IPA: /ˌkælɪˈfɔrnjə/) is the most populous state of the United States. Located on the Pacific coast of North America, it is bordered by Oregon, Nevada and Arizona in the United States, and Baja California in Mexico. Its capital is Sacramento. The state's four largest cities are Los Angeles, San Diego, San Jose and San Francisco. California is known for its diverse climate and geography, and ethnically diverse population. The state has 58 counties.

     Alta California was first colonized by the Spanish Empire in 1769, and after Mexican independence in 1821, continued as part of Mexico. Following one brief week as the independent California Republic in 1846, and the conclusion of the Mexican-American war in 1848, California was annexed by the United States and was admitted to the Union as the thirty-first state on September 9, 1850.

     California is the third largest state by area in the U.S., and if it were a country, it would be the 59th largest in the world - larger than Germany, Italy, and Japan. The state's size gives it a diverse geography, which ranges from sandy and rocky beaches of the Pacific coast, to the rugged snow-capped Sierra Nevada mountains in the east, to desert areas in the southeast and the forests of the northwest. The central portion of the state is dominated by the Central Valley, one of the most productive agricultural areas in the world. The Sierra Nevada contains Yosemite Valley, famous for its glacially-carved domes, and Sequoia National Park, home to the largest living organisms on Earth, the giant sequoia trees, and the highest point in the contiguous United States, Mount Whitney. The tallest living things on Earth, the ancient redwood trees, dot the coastline, mainly north of San Francisco. California is also home to the second lowest and hottest place in the Western Hemisphere, Death Valley. Bristlecone pines located in the White Mountains are the oldest known trees in the world; one has an age of 4,700 years.

      The California Gold Rush, beginning in 1848, dramatically changed California with an influx of population and an economic boom, and San Francisco became a financial and cultural center. 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. The Central Valley is home to California's agricultural industry, the largest of any state. Other major industries include aerospace and petroleum, computer and information technology. California's ranks among the ten largest economies in the world, and were it a separate country, it would be 35^th amongst the most populous countries behind Kenya

     The two most important rivers within California are the Sacramento River and the San Joaquin River, which drain the Central Valley and flow to the Pacific Ocean through San Francisco Bay. Two other important rivers are the Klamath River, in the north, and the Colorado River, on the southeast border. For other rivers, see List of California rivers