There are many Pepsi variants, including Diet Pepsi, Pepsi Max, Pepsi Samba, Pepsi Blue and Pepsi Gold. Pepsi-Cola was first made in New Bern, North Carolina in the United States in the early 1890s by pharmacist Caleb Bradham. On August 28, 1898 , Brad’s drink was changed to Pepsi-Cola and later trademarked on June 16, 1903. There are several theories on the origin of the word pepsi. The only two discussed within the current PepsiCo website are the following: 1) Caleb Bradham bought the name Pep Kola from a local competitor and changed it to Pepsi-Cola. 2) Pepsi-Cola is an anagram for Episcopal – a large church across the street from Bradham’s drugstore. There is a plaque at the site of the original drugstore documenting this, though PepsiCo has denied this theory. Diet Pepsi and Caffeine Free Diet Pepsi have a light, crisp and refreshing taste with zero calories and fat. Contains: Carbonated water, caramel colour, aspartame, phosphoric acid, potassium benzoate (preserves freshness), caffeine, citric acid and natural flavours.