St. Patrick’s Day, celebrated on March 17, honors the patron saint of Ireland, Saint Patrick. Originally a religious holiday, it has evolved into a global celebration of Irish culture, featuring parades, music, and traditional foods. Saint Patrick, born Maewyn Succat in Britain, is credited with converting Ireland to Christianity and is associated with symbols like shamrocks. The day has historical significance, with parades originating in America, and is now recognized worldwide, although its roots are deeply tied to Irish heritage.