Learn how chocolate fueled the Aztecs, helped win WWII, transformed TV and may save the rainforest.

Discovery Channel’s description:The Secrets of Chocolate, an episode in the popular How Stuff Works series, will air on the Discover Channel at 8pm EDT this coming Thursday, September 2nd. Find out how our favorite flavor changed the world. Go inside the intricate science and the outrageous history behind chocolate on How Stuff Works.

Clay Gordon, chocolate savant and author of Discover Chocolate, helped contribute to the program. Don’t miss it!