Popcorn has a buttery odor and soft outer part but no elasticity. It does not break into equal pieces due to the seed in the middle. The color can vary depending on seasoning but is typically white outside and brown inside. Popcorn was not invented by any single person and its origins are unknown, though it has been mostly manufactured in America since the 1940s. It is made by planting, growing, harvesting, cleaning, and drying corn before heating it in a pan until it pops, then seasoning and enjoying it. There are many potential recipes for flavored popcorn beyond just salt and butter.