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Saint Patrick is a national day in
Ireland, but Irish in Europe have been celebrating it since the 9th
century; and later became known as the patron of Ireland. The Feast
Day was officially listed in the liturgical
calender in the Catholic Church, influenced by Luke
Wadding, a Franciscan
scholar in the early 17th century. A solemn ceremony in
the Roman
Catholic Church, it is a great feast day in the Church
of Ireland.