Pins and Needles Day might not have its origins in what you think! Though when we say ‘pins and needles’ today, you’ll think of that tingly feeling you get when your leg goes to sleep, the original Pins and Needles Day started up in 1937 to commemorate the opening of the pro-Labor musical play of the same name on Broadway. The production would eventually have a massive 1108 performance run, but its namesake day has grown to mean something else entirely.