The Origins of Break a Leg

Tonight is the preview of Neil Simon's Laughter on the 23rd Floor at Center Stage Playhouse in the Bronx.  I want to wish all my fellow castmembers a heartfelt "Break a leg!"  It has been a wonderful experience so far and I'm sure it will be a great show.

I always wondered how the phrase "break a leg" originated.  Theater folk are a superstitious lot, and wishing an actor "good luck" is considered bad fortune, so the phrase "break a leg" is substituted. 

Wikipedia has a good summary of various theories about the beginning of the theater phrase.  Is its origin Greek, Roman, Yiddish?  Is it a holdover from the days of vaudeville?  Who knows?

In the meantime, I'll just keep saying it as I look forward to another fun theatrical production with some very talented people.