Today is St Patrick's day! We are dressed in green because green clothing give us good luck. Green is also the color of the Irish Flag, the spring, the Irish landscape (trees, grass...) and the shamrock and clover.
Irish children began the tradition of pinching people who forgot to wear green on St. Patrick's Day.
Patrick was a little boy from Ireland. He decided to study and teach christianity. He used a shamrock (a three-leaved clover) to teach that God was father, son and spirit at the same time. He would teach so good that became very well known all over Ireland. People liked Patrick so much that the day of his death they decided to remember him by celebrating a big party.