War Memorial Opera House Japanese sneak attack and bombing of Pearl Harbor, Hawaii, marking the American entry into World War II in December 1941, the households was regularly blacked out and performances were monitored by air raid wardens. In spring of 1945, the United Nations had its San Francisco Conference (UN Conference on International Organization) first organizing assembly there. The UN Charter was later drafted and signed in the Herbst Theatre next door. Six years later in 1951, the Treaty of San Francisco, declaring peace with Japan was drafted and signed here and in the Herbst Theatre. During the years of Kurt Herbert Adler's
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