The Margarita is a beautiful classic cocktail -and it's easy to make, too. The drink is already from the 40s although it's really famous starting from the 70s. In the US there's even a national Margarita day (22nd of February).
Here's a true classic that dates back to the days when rye whiskey was the liquor of choice. It's a very special combination of ingredients that are rarely used nowadays. A Continental Sour is actually a Whiskey Sour with port. More