My favorite sport is football.  Do you like football? 
I like American style, gridiron football! I'm not a fan of rugby style football. Which do you prefer?
I like both.  Where did American football originate from? 
American football can be traced back to Britain in the mid-19th century. The rules were very similar!
What was the game called when it was in Britain? 
I'm not exactly sure but it's sometimes known as Gaelic football I think. 
Sounds a lot like Rugby.  They don't use pads correct?
Shoulder pads
Shoulder pads are a piece of protective equipment used in many contact sports such as American football, Canadian football, lacrosse and hockey. 
The first football shoulder pads were created by Princeton student L.P. Smock in 1877. These were made of leather and wool and were thin, light, and did not provide much protection. Additionally, they were sewn into the players' jerseys rather than being worn as a separate piece of equipment. Allegedly Pop Warner was the first to have his players wear shoulder pads. When
American football.
Walter Camp is widely considered to be the most important figure in the development of American football. As a youth, he excelled in sports like track, baseball, and association football, and after enrolling at Yale in 1876, he earned varsity honors in every sport the school offered.
Following the introduction of rugby-style rules to American football, Camp became a fixture at the Massasoit House conventions where rules were debated and changed. Dissatisfied with what seemed to him to be a disorganized mob, he