History of San Francisco would be used for loading the key fissile components of the first atomic bomb onto the USS Indianapolis in July 1945 for transfer to Tinian. The War Memorial Opera House which opened in 1932, was the site of some significant post World War II history. In 1945, the conference that formed the United Nations was held there, with the UN Charter being signed nearby in the Herbst Theatre on June 26. Additionally the Treaty of San Francisco which formally ended war with Japan and established peaceful relations, was drafted and signed here six years later in 1951. After World War
San Francisco in the 1970s civil rights movement is a nationally recognized institution in the Bay Area. The Yerba Buena Center for the Arts (YBCA) celebrates Latino culture with a "Carnaval," every year, which is said to be the largest multi-cultural event in San Francisco. A gay San Francisco postal worker who was to be dismissed from service by the Civil Service Commission on the grounds of "moral incompetency" fought for his rights in the court, in November 1970, and was reinstated in the job. This marked the beginning of gay reforms. Many important skyscrapers in San Francisco were built in the 1970s. The Hilton