A key element in the Thanksgiving turkey is indispensable, though no one knows exactly why the turkey as the main dish on this important day. Some theorists argue that turkeys are animals that travelers from England and Indians eat in celebration of colonization in the past. Some theorists believe that Queen Elizabeth the 1st eat roast goose in celebrations such as travelers from England to settle in the United States took up this tradition intact. However, because the goose is rare animals. They use turkey instead of goose. Some theorists believe that it is because of the efforts of Benjamin Franklin in the push for Turkey's national animal, the US, but in the end most people disagree. And giving the Eagles a US national animal.