Quoting Charles H. Baker, Jr., in his epic 1939 book “The Gentleman’s Companion – Being an Exotic Drinking Book or, Around the World With Jigger, Beaker and Flask,” “[w]e honestly believe that more people have boasted about the origin of this happy thought than any modern drink.” Baker traces the origins to the village of Daiquiri, Cuba, attributing it (as is so typical in drink folklore) to medicinal purposes.

I’m still trying to get over the awesomeness that is the name Rosebud Butt.

I’ve heard that the Margarita was named after Rita Hayworth, whose real name was Margarita Cansino (I think she actually used that name in her first few movies). If this story is true, it means the drink only dates to the mid-late 1930s.

Do you think cocktails are a bit similar though? Or easy to make, recipe-wise?

I challenged a popular cocktail bar called Browns (in the UK) by devising my own cocktail and pitting it against one of their house favourites. Look:

http://bobversus.com/archives/356

Cheers

From Wikipedia:
A Caesar, sometimes referred to as a Bloody Caesar,] after the similar Bloody Mary, is a cocktail popular mainly in Canada. It typically contains vodka, clamato (a blend of tomato juice and clam broth), Worcestershire sauce and Tabasco sauce, and is served on the rocks in a large, celery salt-rimmed glass, typically garnished with a stalk of celery and wedge of lime. A common nickname for a version without vodka is Virgin Caesar. The drink itself is primarily consumed in Canada and is known as the Canadian National cocktail.
The cocktail was invented by bartender Walter Chell at the Owl’s Nest Bar in the Calgary Inn (now Calgary Westin Hotel) in Calgary, Alberta in 1969, to accompany the opening of a new restaurant, Marco’s. ]In its original form, it contained tomato juice and mashed clams; Clamato had only just been released (with the assistance of Chell) by the Mott’s company that very year, and was not yet widely known or available.
Variations can include substituted or added ingredients, like salt and pepper, wasabi, cayenne pepper, horseradish, or lime juice, seasoning salt or lemon pepper (rather than celery salt), a garnish of dill pickled cucumber, spicy pickled green bean or asparagus. Occasionally a prawn (especially in seafood restaurants) or crisp bacon is used as a garnish. Other names for a Caesar include Bloody Caesar, Canadian Caesar, Salted Caesar, and Clamdigger.