Image courtesy Alex Ling/stock.xchng Chinese Coca-Cola label

On May 8, 1886, at Jacob's Pharmacy in Atlanta, Ga., Dr. John Stith Pemberton mixed carbonated water with a syrup he'd invented. The result was the world's first glass of Coca-Cola. The price for one glass was five cents, and Pemberton advertised it as a health tonic.

Pemberton didn't work alone -- his bookkeeper, Frank Robinson, suggested the product's name, which he wrote using sweeping, cursive letters. This became the product's logo, and you can see it on bottles, cans, trucks and signs today. While the Coca-Cola Company has introduced many new products and used numerous marketing slogans throughout its history, this logo has remained virtually unchanged for more than 120 years. It's identifiable in much of the world, and it's one of the reasons that Coca-Cola is one of the world's most-recognized brands.