San Francisco the time. San Francisco became a consolidated city-county in 1856. San Francisco's status as the West Coast's largest city peaked between 1870 and 1900, when around 25% of California's population resided in the city proper. 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. In World War II, San Francisco was a major port of embarkation for service members shipping out to the Pacific Theater. It then became the birthplace of the United Nations in 1945. After the war, the confluence of returning
San Francisco in the 1970s as the San Francisco Sound was performed live and recorded by San Francisco-based rock groups of the mid-1960s to early 1970s. It was associated with the counterculture community in the city at the time. San Francisco was the cradle of the pornography industry in the United States in the 1970s, and led to a dramatic growth of strip clubs, adult movie theaters, "peep show" booths, and sex shops downtown, as well as to the creation of the first feminist advocacy groups for sex workers. Many skyscrapers were built in the city during this period. The city is also associated with