Throughout the course of time there have been many different types of sports created. There have been many rough sports and thinking sports,ther have also been many variations of the sports too. One well known physical sport is American Football, it's a variation of rugby, the main differences between the two is that rugby players use bigger balls and dont wear pads. Another slight difference are the rules on who you can throw the ball to,how you can hit people,etc. A well known thinking sport is Chess,there are many competitions that you can enter into if you think you are good enough.