What's in a name? Caol Ila 25 Year Old 1984 Cask 3636 - Cask Strength Collection (Signatory) whisky is called whisky because it's produced in Scotland. Were it from America it would be spelled Caol Ila 25 Year Old 1984 Cask 3636 - Cask Strength Collection (Signatory) whiskey, rather than whisky.