Saint Patrick, who lived during the fifth century, is the patron saint of Ireland and its national apostle. Born in Roman Britain, he was kidnapped and brought to Ireland as a slave at the age of 16. He later escaped, but returned to Ireland and was credited with bringing Christianity to its people.
He incorporated some pagan rituals into his form of Christianity – many believe that Saint Patrick introduced the Celtic Cross as a combination of Pagan sun-worship symbology with the traditional Christian cross.
He is also thought to have used the Irish shamrock as a parable, where each leaf of the Shamrock represents one part of the Holy Trinity. This is the trinity of God the Father, God the Son and God the Holy Spirit.

Saint Patrick’s Day
Patrick’s Day observes of the death of St. Patrick, the patron saint of Ireland. The holiday has evolved into a celebration of Irish culture with parades, special foods, music, dancing drinking and a whole lot of green.