Corn is one of the oldest agricultural crops in the world, having been domesticated by Native peoples in what is now Mexico about 10,000 years ago.
It comes in a lot of different varieties, including sweet corn, flour corn, flint corn, and popcorn.
There are more than 25 different types of popcorn.
Some expand to as much as 40 times their original size when heated.
Here's the story of how popcorn went from a staple food grain and a ceremonial embellishment to a Halloween treat, a Christmas decoration, and a movie theater snack.
Popcorn's long history in North America can be traced back to 3600 BCE.
Native Americans, including the Aztecs, used popcorn for food and as part of religious ceremonies.
They adorned their hair or headdresses with it during festivals too.
Indigenous peoples also shared popcorn with European settlers and taught them how to cook it.
Now, centuries later, popcorn is used in myriad ways and has become an important part of several holiday traditions.