Thanks to the help of SarahJosephaHale, the mother of Thanksgiving, turkey became the main course of Thanksgiving. During the immigration period, she was the editor of a famous women's magazine. She made Thanksgiving officially recognized by herself and became a national holiday. In the novel Northwood, she mentioned that roast turkey is the main course of Thanksgiving banquet, and published the recipe of roast turkey in Godeys magazine, thus roast turkey became a new tradition of this festival.