Abigail Carroll

Corcoran / AP

Why are sandwiches considered lunch food, and pancakes served only for breakfast? And did you know that we used to only eat a big meal in the middle of the day? Now we’ve got breakfast, lunch, and dinner. Also, Turkey wasn’t always the most prominent meat on the Thanksgiving table. We talk with Abigail Carroll, a food historian, about the history of the American meal and how we ended up eating what we eat, and when.