Football originated as a student game between Yale and Harvard universities who adapted rules from English rugby, changing the ball shape and name. An oversight association was formed for the new American sport which grew in popularity, with over 10 professional teams by 1920 leading to the formation of the NFL. The Dallas Cowboys are among the most popular NFL teams known as "America's Team", facing off against their NFC East rival Philadelphia Eagles in a game on September 21st.
2. Football was first played by students of Yale and Harvard University. They got the game of rugby from England. They changed the round ball to an egg shaped ball and changed the name. The Intercollegiate Football Association was created to overlook the new sport.
3. In 1920, there were more than 10 professional football teams in the United States. The American Professional Football Association [APFA] became the National Football League [NFL] that we know today.
4. Known as “America’s Team,” the Dallas Cowboys are one of the most popular teams in the League. Their NFC-East rival team is the Philadelphia Eagles.
