What constitutes a dangerous or illegal challenge?

Oct 25, 1977 ... Dr. Ellwood A. Geiges, 82 years old, the man who invented the hand signals referees use to indicate penalties in football. Oct 11, 2013 ... The people who still play a board game invented in 1948 called electric football. Their hard work is now on exhibit at the ADA art gallery in Richmond, Va. Jan 3, 2023 ... The first shoulder pads were invented by LP Smock, a Princeton student, 8 years after his school faced Rutgers in the first ever college football game. English football is still acknowledged as the true home of the sport, albeit with strong dissent from the Scottish, who claim to have invented the passing game. Sep 1, 2008 ... This book explores how Paul Brown worked his way from high school coach to pro football Hall of Famer, while setting forth a blueprint for the modern game. Ken Aston. The Inventor of Red and Yellow Cards. One cannot imagine modern football without the yellow and red card, terms that are now even used in the ... Nov 27, 2015 ... New Pal went 169-104 over the next 25 years, and Marvin Shepler won three sectionals and reached the 1990 state title game. When he retired from ... Italians say that football was invented in Italy. The English claim they invented it. Who is right? ... The ancient Romans played a game called 'Herpastum', a ... Jul 25, 2018 ... Listen to the High School Football America 2 Minute Drill podcast with Jeff Fisher who talks with Elmo Wright. Feb 27, 2023 ... McCullough concludes, while Canadians definitely contributed to the evolution of American football, “we didn't invent it”.