The day honoring the patron saint of Ireland is a global celebration of Irish heritage.
Ireland's patron saint isn't even Irish! St. Patrick was born in Scotland.
HAPPY HOWL-IDAYS: Christmas came early for dogs at a shelter in Dublin as staff let the canines choose from an array of toys given by staff and supporters.
Local radio hosts said Matt Damon has become an "absolute hero" to the locals in Dalkey, adding that they are "protecting you like a glorious gem."
Trump also said he is "considering" a domestic travel ban in certain areas of the country.
Former U.S. Secretary of State Hillary Clinton has been appointed as chancellor of Queen's University in Northern Ireland.