They had a St Paddy event a few years ago. That's where the camlorn (sp?) hats came from. With so many events in the year, it's kind of nice to have a break in between grinding them.
"We have found a cave, but I don't think there are warm fires and friendly faces inside."
Ideally, Tamriel should have it’s own festivals and celebrations that fit with it’s cultures and lore. New Life makes sense, assuming that Tamriel also experiences a winter solstice.