United Nations 1945, 50 governments met in San Francisco for a conference and started drafting the UN Charter, which was adopted on 25 June 1945 in the San Francisco Opera House, and signed on 26 June 1945 in the Herbst Theatre auditorium in the Veterans War Memorial Building. This charter took effect on 24 October 1945, when the UN began operation. The UN's mission to preserve world peace was complicated in its early decades during the Cold War between the United States and Soviet Union and their respective allies. Its missions have consisted primarily of unarmed military observers and lightly armed troops
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