Pictured above is the lovely Julie Andrews — the glowing star of the movie The Sound of Music, surrounded by her castmates at the Hollywood premiere in 1965.
It was on this day in 1959 that The Sound of Music made its debut on Broadway — But what about the woman who originally played the singing governess on Broadway, six full years before Julie Andrews made the role famous? LIFE.com presents a tribute to stage legend Mary Martin — the forgotten Maria.
(see more — Sound of Music: The Forgotten Maria)

