The Cosmopolitan cocktail went viral. It was in a pre-iPhone and social media world, of course — the Internet was still something that required a computer and a painfully slow dial-up modem to access. Geocities and Altavista — remember them? But the Cosmopolitan managed to spread across the globe the old fashioned way: by word of mouth (and an appearance in a popular TV show).
There’s a few different claims to the invention of the Cosmopolitan: one has it being created in Miami’s South Beach in the 1980s by Cheryl Cook; another by a bartender in Provincetown, Massachusetts.