Every March 17, people adorn green attire out of fear for being pinched. All around the world, people flock to pubs and bars to celebrate, and some of the oldest, biggest parades happen on this day. St. Patrick’s Day has been observed for over 1,000 years as a religious holiday. The holiday is named after St. Patrick, who lived in the fifth century. He was the primary patron saint and national apostle of Ireland.