History of Popcorn PBS.org http://www.pbs.org/food/the-history-kitchen/popcorn-history/ this article on the PBS website, History of Popcorn The History Kitchen PBS http://www.pbs.org/food/the-history-kitchen/popcorn-history/ http://www.pbs.org/food/the-history-kitchen/popcorn-history/ Bat Cave History of Popcorn "History of Popcorn | The History Kitchen | PBS Food" http://www.pbs.org/food/the-history-kitchen/popcorn-history/ Glen Dickson http://www.pbs.org/food/the-history-kitchen/popcorn-history/ http://www.pbs.org/food/the-history-kitchen/popcorn-history/ History of Popcorn History of Popcorn | The History Kitchen | PBS Food History of Popcorn Nonpareil or Pearl PBS http://www.pbs.org/food/the-history-kitchen/popcorn-history/