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The history of Thanksgiving Day football
NFL Thanksgiving: History behind Cowboys, Lions' annual holiday tradition
Thanksgiving Day, Meaning, History, & Facts
Thanksgiving Day Games Pro Football Hall of Fame
The History of the NFL on Thanksgiving - Gang Green Nation
The History of Thanksgiving Football – The Daily Runner
Packers vs. Lions: Complete Thanksgiving Day Primer for Green Bay and Detroit, News, Scores, Highlights, Stats, and Rumors