wikipedia - 

Thanksgiving meals are traditionally family events where certain kinds of food are served. As is evidenced by the tremendous level of travel, significant effort is made by family members to gather for the Thanksgiving celebration. Family participation is notably inclusive ranging from the very youngest to the most senior. First and foremost, turkey is the featured item in most Thanksgiving feasts (so much so that Thanksgiving is sometimes facetiously referred to as “Turkey Day”). Stuffing, mashed potatoes with gravy, sweet potatoes, cranberry sauce, corn, turnips, rolls, pecan pie, and pumpkin pie are commonly associated with Thanksgiving dinner. Often guests bring food items or help with cooking in the kitchen as part of a communal meal.