Sazerac
It all began for the Sazerac cocktail in the early 1800's when Antoine Amedee Peychaud mixed Cognac with his Peychaud bitters. In 1859 the drink was the signature drink of the Sazerac Coffee House in New Orleans, where it received its name. The exact reason for the substitution of rye whiskey for the Cognac is unclear, but a whiskey base is used today.