San Francisco War Memorial and Performing Arts Center Art from 1932 to 1994. In 1980 the new Louise M. Davies Symphony Hall opened, on a site on Van Ness across the sidestreet from the Opera House, as part of the SFWMPAC complex. The SFWMPAC has historical significance. On June 26, 1945, the United Nations Charter was signed in the Veterans Building's Herbst Theatre by the group of 50 founding nations, following the two-month-long United Nations conference in the Opera House. In 1951, the Peace Treaty with Japan (commonly called "Treaty of San Francisco"), formally ending World War II hostilities with Japan, was signed in the Opera House. The
San Francisco City and County of San Francisco—is a consolidated city-county, a status it has held since the 1856 secession of what is now San Mateo County. It is the only such consolidation in California. The mayor is also the county executive, and the county Board of Supervisors acts as the city council. The government of San Francisco is a charter city and is constituted of two co-equal branches. The executive branch is headed by the mayor and includes other citywide elected and appointed officials as well as the civil service. The 11-member Board of Supervisors, the legislative branch, is headed by