/cdn.vox-cdn.com/uploads/chorus_image/image/66968899/Browns_end_zone.0.jpg "Genealogy of American Football - When were “End Zones” invented? - Dawgs By Nature")
Genealogy of American Football - When were “End Zones” invented? - Dawgs By Nature
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History of American Football Facts: From Invention To The Super Bowl | HistoryExtra
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