Consider new ideas for greeting the new year by learning about some of the unusual traditions — and a few superstitions — with which Swedes, Croats, Scots, and the Welsh celebrate this time of year. Then hear about the multicultural food and music that enliven the streets of New Orleans' neighborhoods. And join us as we remember the late historian David McCullough with a look back at his examination of how the Wright Brothers changed the way we see the world.