As of 2011, the next time September 13 will fall on a Friday is in 2013.
September 13 1960 was a Tuesday.
463 days
September 13, 1960 fell on a Tuesday.
The Category was Musical TheaterThe clue was "A Hollywood Venue was renovated and renamed the Aquarius Theater to host this musical in 1968"The answer was What is HairMusical Theatre