1950s
This is a more difficult piece of football arcana. Actually, there are very many photographs of NFL game action from the late 1940's showing players wearing cage-type facemasks. These photos gainsay the long-circulating story that the facemask was introduced by Cleveland Browns' coach Paul Brown following an injury to Otto Graham in 1953. That claim may have been based on the fact that the Browns were actually one of the last teams to employ facemasks, and the coach's resort to the protective device was a "first" for him. It is known that helmet manufacturers designed a primitive mask in the early 1940's, but which team was the first to use masks, or which player the first to wear one is hard to pin down.
they start wearing shorts and pants
About 1969 is when astro turf cleats began.
Yes, it's possible to start at minimum 9 players. Some football game requires 8 players to start the game.
August
Always
Tomorrow
1950
That depends on which form of football is being played. American football 11 players per team = 22 Association football 11 players per team = 22 Canadian football 12 players per team = 24 Rugby league football 13 players per team = 26 Rugby union football 15 players per team = 30 Gaelic football 15 players per team = 30 Australian Rules football 18 players team = 36
They are the players that don't start the game.
11
They are most likely to be 21-24
Well if they're in College then they live in sororities I imagine