St. Patrick's Day is celebrated every year on March 17. It is a holiday that began in Ireland. In fact, it is a national holiday there. People in many other countries celebrate the day, but it is not an official holiday in other countries. The day celebrates the Irish culture. It began as a religious holiday. One tradition that many observe is wearing green. Some even believe that those who do not wear green on St. Patrick's Day will be pinched. St. Patrick's Day celebrates St. Patrick, one of the patron saints of Ireland. Blue was his color. Why green now and not blue? "The wearing of the green" meant to put a shamrock on one's clothes. Long ago .....