The Old Fashioned and, wait for it........... The Old Fashioned Old Fashioned

I know, I know, what gives? Which is which? Now I'm confused, but basically we've got two versions of the same drink- both old fashioned, but one even older than the other.
I think I hear Bill Belichick muttering "it is what it is."

Simply in the drink, we’re talking whiskey (or maybe even brandy), sugar, bitters, lemon peel- that's it. Famed cocktail historian David Wondrich notes that as far back as 1800 it was in vogue, and if one ordered the original “Cock-Tail” it would have been served. But by the 1870s you would have to call it an “Old Fashioned” as it had been around for the better part of the century. In the 1880s, the drink was with bourbon at The Pendenis Club in Louisville, Kentucky. After repeal, the drink began to change by adding muddled fruit (orange and cherry), becoming the version people are most familiar with today.
So, the 1800 Old Fashioned became even more so- the Old Fashioned Old Fashioned.

Popular culture and all-things-cocktail these days has brought it roaring back- my favorite reference might be the following video clip (mostly because Don Draper uses his fingers as the strainer).

Old-Fashioned Old Fashioned 1855
Place a sugar cube in the bottom of a double rocks glass
Add 2 dashes Angostura bitters
Add splash of soda
Muddle the sugar, bitters, soda until a syrup is formed
Add ice
2 oz Rye
Stir
Lemon peel garnish optional

Old Fashioned 1955
Place a sugar cube in the bottom of a double rocks glass
Add 2 dashes Angostura bitters
Add splash of soda
Add 1 orange slice, 1 maraschino cherry
Muddle all ingredients thoroughly, remove orange rind with a bar spoon
Add ice
2 oz Bourbon or Rye
Stir
Garnish with a fresh orange and cherry