What's the "original" King's Pawn Opening?

If you play Nf3 after e4 e5, you'll notice that the opening is called "King's Pawn Opening: King's Knight Variant".

Here's my question: If that's a variant, then what was the original opening meant to be?

Oh lol. It's not a "variant." It's the variation. In chess, any "opening" is the over-arching umbrella for that entire setup, whereas specific lines within this are called variations.

The "original" King's pawn opening is 1. e4 e5. If you play 2. Nf3, then that's the King's Pawn Opening: King's Knight variation (although no one calls it that; they just call it Nf3). If you play another second move, then that's another variation.

(p.s. Is my comment glitch doubling?)

Yes

Weird. Yeah, it only did it for that one and it was only clicked twice. I'll manually delete the duplicate.

It's merely the stupidity of the person that put the site together. Almost every name in the first few moves are made up. For example:

1.e4 c5 is the Sicilian Defense. There is no variation yet.

2.Nf3 - there still is no variation, but the clowns here feel there must be a unique name for this compared to the position after 1...c5.

2...e6 - The clowns here claim this is called the "French Variation" - there is no French Variation. This is more bulls**t made up by them just to have a different name. The French players came up with 1.e4 e6 2.d4 d5 in 1834 in a team match against the Brits, and the French won. Not every position with the move ...e6 pertain to the French.

3.d4 - this can now be said to be the Open Variation.

3...cxd4 4.Nxd4 Nf6 5.Nc3 - No name change through now.

5...Nc6 - You now have the Four Knights Variation.

So long story short - Ignore the names until you get deeper into the game. They are a bunch of hogwash made up by a drunk!

Opinion is divided on the person who named these lines.

Some say that he was crazy. Others insist that he was drunk.

And even that is tentative. It could still change into a Sveshnikov. (Sveshnikov players sometimes go for this move order to avoid the Rossolimo, as well as to avoid the trendy 7. Nd5 Sveshnikov variation -- though it allows some alternatives).