There is no historical evidence that turkey was eaten at the first Thanksgiving dinner. It was a three-day party shared by the Wamponoag Indians and the pilgrims in 1621. Historians say they likely ate venison and seafood.

The green bean casserole became popular about 50 years ago. Created by the Campbell Soup Company, it remains a popular side dish. According to Campbell’s, it was developed when the company was creating an annual holiday cookbook. The company now sells about $20 million worth of cream of mushroom soup each year, which is a major part of the recipe.

Since Thanksgiving did not become a national holiday until Lincoln declared it in 1863, the annual parades were not yearly events until much later. The biggest parade that continues to draw crowds is the Macy's Thanksgiving Day Parade. Beginning in 1924 with about 400 employees, they marched from Convent Avenue to 145th Street in New York City. Famous for the huge hot-air balloons today, it was actually live animals borrowed from the Central Park Zoo that were the stars of the show then.