Ireland is an island west of the United Kingdom. It has a mostly green landscape due to frequent rain. Northern Ireland is part of the UK while the Republic of Ireland is independent. The Irish flag represents Catholics, Protestants, and peace between the two. St. Patrick's Day is Ireland's national holiday on March 17th. While English is mainly spoken, some speak Gaelic as well. Common Irish symbols include the harp, shamrock, and Celtic designs that represent traditional Irish culture, music, dance and history.