He didn't. Pasta originated in Southern Europe and was first referenced in 1154. Marco Polo's famous trip took place a hundred years later. The myth of Marco Polo bringing noodles back was first reported in the Macaroni Journal in the 1920s by North American companies as a marketing campaign. Since then it has been a persistent myth.

Your question is basically asking "Why did polar bears invent coca cola and when did Santa start helping them distribute it?"