how is the Marshall Gambit a Gambit !!

I dont see how this is a gambit since white can hold on to the pawn guess we should add this opening with the other wannabe gambits (Queens G & Hopkins G).

6.Nc3 is a lame move. 6...c5 equalizes easily.

6.Bd2 Qxd4 7.Bxb4 Qxe4 8.Be2 is where all the fun starts. A true gambit.

But perhaps you're right and we should call it a gambit only after 6.Bd2.

You played e4 too early to call this the marshall gambit.  The idea is black can capture on c4 and play b5.  In your move order it's never an option.

Oh, and I think that's call the botvinnik, unless there's some weird gambit I don't know (other than the very famous marshall gambit in the ruy).

Can you be more specific?  In the diagram it's black to move.  Do you mean 6...Bd6 7.Be2  Because then I'm with the OP, I don't see the gambit at all :)

Queen's Gambit is not a wannabe gambit. It is one of the oldest chess openings discovered.

Lol. 

The reason is because when white plays this line, it is almost always played as a gambit and doesn't play 6.Nc3

e4 being played when it was is the marshall gambit jsut look in chess.coms opening explorer.

its not a reall gambit cause white can get the pawn right back so it is a wannabe.

There are lots of lines in the QG where white doesn't get the pawn back for a long time. if at all. Look at the noteboom, some catalan lines, or some of the QGA lines (with an early e4, for example). Usually black doesn't try to hold onto the pawn, though.

I thought this was a Ruy Lopez page.