Premise: San Francisco ( initials SF ) ( [ sæn_frənˈsɪskoʊ ] , Spanish for Saint Francis ; Spanish : [ san franˈsisko ] ) , officially the City and County of San Francisco , is the cultural , commercial , and financial center of Northern California . The California Gold Rush of 1849 brought rapid growth , making it the largest city on the West Coast at the time . After three-quarters of the city was destroyed by the 1906 earthquake and fire , San Francisco was quickly rebuilt , hosting the Panama-Pacific International Exposition nine years later . After the war , the confluence of returning servicemen , massive immigration , liberalizing attitudes , along with the rise of the `` hippie '' counterculture , the Sexual Revolution , the Peace Movement growing from opposition to United States involvement in the Vietnam War , and other factors led to the Summer of Love and the gay rights movement , cementing San Francisco as a center of liberal activism in the United States .
Hypothesis: San Francisco has always been uninhabitable.
Label: CONTRADICTION