The original 13-rules of basketball
Dr. James Naismith published these original 13-rules of basketball in 1892. I especially like #5:
5. No shouldering, holding, pushing, tripping, or striking in any way the person of an opponent shall be allowed; the first infringement of this rule by any player shall count as a foul, the second shall disqualify him until the next goal is made, or, if there was evident intent to injure the person, for the whole of the game, no substitute allowed.
Could you imagine if this rule were still in effect today? It would be like hockey where a team could have a power play. Until the next goal was scored a team would be playing 4 on 5.
/via Jason Kottke.