NFL January 12, 2018 2:50 pm History of the American Football Dates Back to the 1800s Here is the reason why the American football is commonly referred to as “pigskin.” US & World Videos 0:48 2024 NBA playoff second-round matchups, how they got there 0:58 Mystik Dan wins 150th Kentucky Derby in photo finish 0:45 Lakers fire head coach Darvin Ham 0:45 Knicks defeat 76ers, advance to Eastern Conference second round 1:10 Interesting facts you never knew about the Kentucky Derby