Whether you’re a casual soda drinker or a soft drink fiend, odds are you have a strong opinion when it comes to the longstanding rivalry of Coca-Cola versus Pepsi.

The Coca-Cola Company and PepsiCo are two of the largest and most recognizable food and beverage brands in history, each with hundreds of products sold in markets worldwide. From television and print ads, to celebrity endorsements and iconic product placement in feature films, the companies’ influence knows no bounds. But despite their current international dominance, both of these megabrands had humble beginnings.