Coca-Cola, or Coca-Cola, is a Coca-Cola carbon dioxide drink. Originally marketed as a mild drink and intended as a patented medicine, it was invented in the late 19th century by John Sitth Pemberton and purchased by businessman Asa Griggs Candler, whose marketing tactics led Coca-Cola to dominate the world's soft drinks market throughout the 20th century. The name of the drink refers to two of its original ingredients: coca leaves and cola nuts (a source of caffeine). Coca-Cola's current formula remains a commercial secret; however, a variety of recipes and experimental recreation have been published. Coca-Cola Company produces concentrates, which are then sold to Coca-Cola bottles licensed worldwide. Packing, who contract exclusive land contracts with the company, produce the final product in cans and bottles of the center, in combination with water and water filtered sweeteners. Typical 12-ounce US-ounce liquids (350 ml) can contain 38 grams (1.3 ounces) of sugar (usually in the form of high fructose corn syrup). The stores then sell, distribute and distribute Coca-Cola goods to retail stores, restaurants and vending machines around the world. The Coca-Cola Company also sells the center to soda fountains from major restaurants and food service distributors. Coca-Cola Company has sometimes introduced other cola drinks under the name Coke. The most common of these are Diet Coke, along with others including caffeine-free Coca-Cola, Caffeine-Free Diet Coke, Coca-Cola Zero Sugar, Coca-Cola cherries, Coca-Cola vanilla, and special versions with lemon, lime, and coffee. Coca-Cola was named the Coca-Cola Classic from July 1985 to 2009, distinguishing it from "new coke." Based on the 2015 Interbrand Best Global Brand study, Coca-Cola was the third most valuable brand in the world, after Apple and Google. In 2013, coke products were sold in more than 200 countries worldwide, with consumers drinking more than 1.8 billion shares of the company's beverages every day. Coca-Cola ranked 87th in the Fortune 500 list for 2018 for the largest U.S. companies in terms of total revenue.