While a bit self-congratulatory in places, this history of the development and roll-out of Diet Coke has some interesting trivia tidbits (the lower case “d” in the name was both a branding and legal decision) that make it worth a read.
The Extraordinary Story of How Diet Coke Came to Be
The original Diet Coke team tells the story of how they created, launched and marketed the number-one rated diet soda brand.
Apparently Denver was one of the prototype markets on Diet Coke's first release (and one of the most successful).