The drink's name refers to two of its original ingredients: coca leaves and kola nuts (a source of caffeine). The current formula of Coca-Cola remains a closely guarded trade secret; however, a variety of reported recipes and experimental recreations have been published. The secrecy around the formula has been used by Coca-Cola in its marketing as only a handful of anonymous employees know the formula.[2] The drink has inspired imitators and created a whole classification of soft drink: colas. - A thank you from BooksCardsNBikes