Why does the NFL play games on Thanksgiving and who is playing today?, The Independent
Why do the Dallas Cowboys play on Thanksgiving Day?
NFL on Thanksgiving Day - Wikipedia
The NFL should ditch Lions, Cowboys Thanksgiving tradition – WTBU Sports
Why Dallas Cowboys play football on Thanksgiving every year
Campbell hoping to get first Lions win on Thanksgiving Day
When did the Detroit Lions last win on Thanksgiving?
Why do the Dallas Cowboys and Detroit Lions always play on Thanksgiving? - Los Angeles Times
When and why did the NFL decide Dallas and Detroit would always play on Thanksgiving? - Quora