What are NFL's lateral pass rules and when did it become legal? – NBC Sports Boston
THIS WEEK IN HISTORY (Nov. 5, 1921): First forward pass in Canada was at McGill - McGill University Athletics
Forward Thinking on Backward Passes
The Early History of Football's Forward Pass, History
Herbert, Chargers keep Vikings winless, pulling out a 28-24 victory sealed by late pick in end zone
GEQBUS has done more for the NFL than any Quarterback in history, including Bradbury Robinson, who threw the first legal forward pass in football in 1906. : r/the_darnold
100 Years Ago: Football's First Forward Pass
Tom Brady Passed Twice on One Play. And It (Sort of) Worked. - The New York Times
Geneology of American Football: Evolution of goal posts Part 1 - Dawgs By Nature