The most kids know of St. Patrick 's Day is that you must wear green or you'll get a pinch from your friends. Interesting facts: March 17th is when Patrick died. St. Patrick wasn't Irish. Patrick's color is blue. The original color associated with St. Patrick is blue, not green as commonly believed. In several artworks depicting the saint, he is shown wearing blue vestments. King Henry VIII used the Irish harp in gold on a blue flag to represent the country. Since that time, and possibly before, blue has been a popular color to represent the country on flags, coats-of-arms, and even sports jerseys. Green was associated with the country later, presumably because of the greenness of the countryside, which is so because Ireland receives plentiful rainfall. Today, the country is also referred to as the "Emerald Isle." St. Patrick's was a dry holiday in Ireland until 1970. Aside from the color green, the activity most associated w...