Popcorn: Traditions, Halloween balls, Christmas strings, year-round movie delight.

Corn's global role: From the New World, a worldwide phenomenon.

National Popcorn Day: Enjoy a big bowl of this treat!

Corn's history: Original form, settlers' discovery, centuries of cultivation.

Popcorn's discovery: Certain kernels pop into a light, delicious treat.

Two types of popcorn: Yellow, movie theater favorite.

National Popcorn Board: Created Popcorn Day for celebration and recognition.