The borders of the San Francisco Bay Area are not officially delineated, and the unique development patterns influenced by the region's topography, as well as unusual commutepatterns caused by the presence of three central cities and

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The earliest archaeological evidence of human habitation of the Bay Area dates to around 10,000 B.C.(Coyote Hills Shell Mound) along the shores of the bay, with evidence pointing to even

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Arts
Art
The Bay Area was a hub of the Abstract Expressionism movement of painting. It is associated with the works of Clyfford Still, who began teaching at the California School of Fine Arts(now

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According to the 2010 United States Census, the population of the nine-county Bay Area was 7.15 million, with 49.6% male and 50.4% female.

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The three principal cities of the Bay Area represent different employment clusters and are dominated by different, but commingled, industries. San Francisco is home to the region's

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The Bay Area is the most expensive place to live in the United States. Strong economic growth has created hundreds of thousands of new jobs, but coupled with severe restrictions on

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Colleges and universities
The Bay Area is home to a large number of colleges and universities. The three most notable universities are Stanford University, University of California, Berkeley, and University of California, San Francisco, all considered among the

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