The Muny seasons run every year from mid-June to mid-August. It is run by a not-for-profit organization. The current president and chief executive is Dennis M. Reagan. The current artistic director & executive producer is Mike Isaacson.
In 1914, Luther Ely Smith began staging pageant-Masques on Art Hill in Forest Park. In 1916, a grassy area between two oak trees on the present site of The Muny was chosen for a production of As You Like It produced by Margaret Anglin and starring Sydney Greenstreet with a local cast of "1,000 St. Louis folk dancers and folk singers."
Soon after, the Convention Board of the St. Louis Advertising Club was looking for an entertainment feature for its thirteenth annual convention, which was to take place June 3, 1917. Mayor Henry Kiel, attorney Guy Golterman, and Parks Commissioner Nelson Cunliff stepped in and, in forty-nine days (not counting seven lost to rain), created the first municipally owned outdoor theatre in the United States. On June 5, 1917, the opera Aida was presented on what would become the Muny stage.
The Muny produces all of its musicals (typically seven) in the season and operates only in the summer. During the winter, a full-time staff of fewer than twenty people prepare for the next summer season. During the season itself, the summer staff expands to include more than 500 people in various positions.
The Muny website claims it is the "nation's oldest and largest outdoor musical theatre." There are numerous amphitheatres/outdoor theatres that have a larger capacity area; however, The Muny houses the largest number of seats. There is no lawn seating inside The Muny. In addition, The Muny is the largest to host only Broadway-style musical theatre.
The next largest seat capacity theatre in the United States is the San Manuel Amphitheater in California, housing 10,900 seats.
According to wikipedia
