Why do we eat black-eyed peas on New Year's? Here's how the tradition is said to bring good luck.

Americans eat black-eyed peas for New Year's to bring about good fortune in the coming year.

But that's the short answer. The long one involves a shared family tradition that celebrates the legume's prosperous legacy in Africa and the Americas. 

But first, a practical tip: It's time to start soaking the beans.