On September 29, 1979, John Paul II became the first Pope to set foot on Irish soil. 1,250,000 people (1/4 of the population of the island of Ireland, and 1/3 of the population of the Republic of Ireland) attended his Mass in Dublin's Phoenix Park. Over 250,000 attended a Liturgy of the Word in Drogheda later that evening. Hundreds of thousands lined the streets of Dublin that night for a motorcade from Dublin Airport to Áras an Uachtaráin, the Presidential Residence in the Phoenix Park.
The following day, Sunday 30 September, included Masses in Galway (300,000), Knock (450,000) and a stop over at the monastic ruins of Clonmacnois (20,000). The final day of the visit began with a visit to the National Seminary in Maynooth (attended by 80,000). The final Mass of the visit was at Greenpark Racecourse in Limerick in the south of the country before 400,000 people which was more than had been expected. From Wlkipedia http://en.wikipedia.org/wiki/List_of_pastoral_visits_of_Pope_John_P...