St. Patrick's Day

Who was St. Patrick? : He was the patron saint of Ireland, one of  Christianity's most widely know figures. What is the purpose of st. Patrick's day?  It is a cultural and religious celebration March 17 the day the traditional death of Saint Patrick. Why is saint Patrick's day designed that day? It is a traditional death of Saint Patrick's Death. Why do wear green? It is a symbol to celebrate the Ireland flag. He died on March 17 , 461 ad. In Chicago they make their river green for saint Patrick's day.