St. Patrick is the patron saint of Ireland and is celebrated on March 17th each year. He is known for bringing Christianity to the Irish people in the 5th century. Born in Britain, he was kidnapped by pirates and taken to Ireland, where he later escaped. After returning home, he felt called to return to Ireland as a missionary. St. Patrick is often associated with the shamrock, a three-leafed plant he used to explain the concept of the Holy Trinity. Today, his feast day is marked by parades, wearing green, and various festivities, celebrating Irish culture and heritage around the world.