The Chicago is a brandy-based cocktail that was most probably named after the city of Chicago and has been well documented in numerous cocktail manuals dating back to the 19th century.
The Long Island Iced Tea was named for its visual resemblance to a non-alcoholic Iced tea. However, it couldn’t be more different in taste and alcoholic content, containing an array of beverages; typically made with vodka, light rum, tequila, triple sec and gin. Having the same hue as its namesake is the only similarity!
This cocktail has a much higher alcohol concentration than most long drinks due to the relatively small amount of mixer used and the combination of several alcoholic beverages.
The X.Y.Z is a simple cocktail that is very tart. If you can’t handle the tartness, you can always add some sugar syrup to sweeten it