National Popcorn Day is January 19th. This treat can be sweet, savory, caramelized, buttered, plain, a candied ball or tossed with nuts & chocolate. “Corn” in Old English meant “grain” the most prominent grain grown in a region. Maize was the most common grain in early America, the word “corn” was aptly applied. Who can image going to the movies without getting buttered popcorn? Popcorn is an economical choice for snacks. Americans eat 13 billion quarts of popcorn a year. Pouring popcorn in a bowl.