 This trend began in 1983 when Jim Crockett Promotions, the largest promoter in the National Wrestling Alliance, introduced Starrcade.Starrcade, later incorporated into World Championship Wrestling, moved off Thanksgiving in 1988; the year prior, the rival World Wrestling Federation had introduced Survivor Series, an event that continues to be hosted in November to the present day.Many American cities hold road running events, known as "turkey trots", on Thanksgiving morning, so much so that , Thanksgiving is the most popular race day in the U.S.