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 International Airport station hours. When it first opened, ridership was 50% below the projected 6,500 passenger exits per day. During its first decade of service, ridership remained well below initial projections, but has nearly doubled between 2003 and 2015. Ridership reached a record of 6,788 average weekday exits during the fiscal year ending June 30, 2016. In 2013, BART celebrated ten years of service to SFO and 30 million trips delivered. San Francisco International Airport station San Francisco International Airport station is a Bay Area Rapid Transit (BART) reversal station on the Antioch–SFO/Millbrae line located inside the San Francisco International Airport, also known