Cola's a beverage usually with caramel coloring and containing caffeine. Originally invented by the druggist John Pemberton, it's become popular worldwide. Coca-Cola has become the major international brand, leading to the drink often being seen as a symbol of the United States. Modern colas very rarely contain any kola nut—the origin of the name—as the taste of this nut's strongly bitter. Flavorings Despite the name, the primary flavoring ingredients in a cola drink are sugar, citr… (More on Cola)