The show's original off-Broadway production ran a total of 42 years and 17,162 performances, making it the world's longest-running musical.


The scheduled starting time for the first preview (on Saturday, April 23, 1960, or, depending on your point of view, Sunday, April 24) was midnight. The next preview was on Sunday evening, April 24, at the more standard Off-Broadway starting time of 8:40 p.m.