Because of football, hockey players began wearing shorts.
Canadians invented football at the same time as American college students, according Sportsnet.
In the 1870s, Harvard players abandoned the "Boston Game," a hybrid of rugby and soccer, and embraced McGill's rugby-centric regulations, per History.
First public indoor hockey game was in 1875, when most participants also played football.
According to Hockey Writers, they donned summer football shorts and a turtleneck for hockey.
Long socks kept players' legs toasty and shin pads in place, according ESPN.