St Patrick was the patron saint of Ireland, credited for bringing Christianity in Ireland. The principal of his life is resumed in his spiritual autobiography, Confession.
Saint Patrick is most known for driving the snakes from Ireland. However, there are no snakes in Ireland. Actually, as in many old pagan religions, snake symbols were common and always worshipped. Driving the snakes from Ireland was probably symbolic of putting an end to that pagan practice.
Furthermore, St Patrick said he has encountered Druids at Tara and abolished their rites.
Originally, the color associated with Saint Patrick was blue. Over the years the color green and its association with Saint Patrick's Day grew. Green ribbons and shamrocks were worn in celebration of St Patrick's Day as early as the 17th century. He is said to have used the shamrock, a three-leaved plant, to explain the Holy Trinity to the pagan Irish, and the wearing and display of shamrocks and shamrock-inspired designs have become a ubiquitous feature of the day. In the 1798 rebellion, in hopes of making a political statement, Irish soldiers wore full green uniforms on 17 March in hopes of catching public attention. The phrase "the wearing of the green", meaning to wear a shamrock on one's clothing, derives from a song of the same name.
Several accounts are present about St Patrick’s death; he died at Saul, in Ireland, on March 17, 460, or at Glastonbury, in England; in this town still exist the Chapel of St Patrick, as part of Glastonbury Abbey.
Today, in memory of his death, the St Patrick day is celebrated on March 17 in a lot of lands, in Ireland of course (In 1903, Saint Patrick's Day became an official public holiday in Ireland) but too in Argentina, Canada, Great Britain, Montserrat, South Korea, New Zealand, Japan and in the United States, where Irish patriotism in New York City continued to soar and the parade in New York City continued to grow. Chicago dyes its river green and has done so