The Queen's Gambit is called a gambit because White offers a pawn with 1.d4 d5 2.c4. Unlike many attacking gambits, the offer does not usually require a permanent material sacrifice: after ...dxc4, White often recovers the pawn through normal development. The point is to challenge Black's central d-pawn with a flank pawn and change the balance in the centre.
The opening has roots in early chess literature, including the Gottingen manuscript. It later became a central part of classical positional play. The 1927 world championship match between Capablanca and Alekhine featured Queen's Gambit positions repeatedly, illustrating how much variety and strategic depth could grow from the same initial pawn challenge.
Black can accept with ...dxc4, reinforce d5 with ...e6, or support it with ...c6. Those choices create different development problems. In the Accepted, Black should be cautious about spending too much time trying to keep the extra pawn. In the Declined, Black must find useful work for the light-squared bishop and prepare a freeing central break.
For practice, compare the first few moves of the Accepted and Declined rather than memorising them as unrelated openings. Track which central pawns remain, which diagonals open and how White prepares e4 or develops the bishops. The name becomes memorable when you see the pawn offer as a question about central control, not simply an invitation to grab material.
Try this at the board
After ...dxc4, identify the central square Black's d-pawn no longer controls and consider White's development.