We've reached the season finale of Who Knew?, so Mr. Rixon and Mrs. Allgood are cracking open an ice cold can of knowledge about Coca-Cola! In this episode, we explore how the beverage has origins in the Civil War, as well as the patent medicine craze of the late 1800's and early 1900's. We'll also discuss the shady business dealings around the growth of the brand, and how Diet Coke sold at McDonald's is scientifically proven to taste better!