St Patrick's Day is a global celebration of Irish culture on or around March 17. It particularly remembers St Patrick, one of Ireland's patron saints, who ministered Christianity in Ireland during the fifth century.
St. Patrick's Day is a holiday that honors St. Patrick and celebrates all things Irish. Every year on March 17th, some kids dress up in green and look for shamrocks, while others try to catch the elusive St. Paddy's Day leprechaun.
If we don't wear green, it's considered shameful and we get pinched. In addition to that, people often wear green on St. Patrick's Day to make themselves invisible to mischievous leprechauns. Anyone who practices the pinching tradition and pinches others who aren't wearing green can be compared to the leprechauns.