Chewing gum has been around for thousands of years, first to be commercially sold in the mid 1800s. So it had somewhat of an established test market :) Interes

Chewing gum has been around for thousands of years, first to be commercially sold in the mid 1800s. So it had somewhat of an established test market :) Interesting aside, Wrigley didn't start off selling gum - originally it was packaged for free with their baking soda. The gum became more popular than the baking soda and well... they did a fairly profitable pivot. Around half a century later Topps was a manufacturer of chewing gum, having roots in the tobacco industry (things you chew?). By this point in time gum was sold by itself, and there were many players in the industry. In an effort to increase sales they began packaging cards with the gum and well...