The War Memorial Opera House was given its inaugural opening on October 15, 1932 with a performance of
Giacomo Puccini's
Tosca by the
San Francisco Opera. The performance was led by
Claudia Muzio as the title heroine with
Dino Borgioli as Mario Cavaradossi and
Alfredo Gandolfi as Baron Scarpia. The production was staged by
Armando Agnini and the music forces were led by conductor
Gaetano Merola. The
San Francisco Symphony performed most of its concerts in the house, from 1932 to 1980. 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 general directorship, the inadequacies of the house became apparent as the season was expanded. In particular, there was a lack of office space and rehearsal space. In 1974,
The Pointer Sisters were the first pop act to perform at the theatre. In 1979 the backstage area was extended, followed in 1981 by the opening of a new wing built onto the house on the Franklin Street side. This gave spaces for sets, coaches, and dancers as well as more administrative space. At the same time, the nearby
Zellerbach Rehearsal Hall, with a stage the same size as that of the Opera House, was opened as part of the complex which included the
Louise M. Davies Symphony Hall. In 1989, the
Loma Prieta earthquake caused major damage to the Opera House. The architectural firm of
Skidmore, Owings & Merrill and the theatrical consulting firm of Auerbach and Associates were retained in 1992 to oversee the building's technical renovation and a
seismic retrofit. At this time additional private donations were raised for extensive technical improvements. These include: • State-of-the-art lighting system – which at the time, made it one of the most extensive and sophisticated systems in the world. • Replacement of chambers for a never-installed organ with modern restrooms, sorely needed since the original construction. The organ is not needed with the completion of the nearby
Davies Symphony Hall. • An underground extension below the neighboring plaza to accommodate additional dressing rooms and backstage facilities. ==Appearances in media==