The European Football Conference (EFC) and the National Football League (NFL) have been meeting for 53 years. These conferences have played out very differently in these decades, from the physicality to the viewership of games.
In American football, a touchdown results in six points being scored by a team. In European football, teams score only two points with a successful conversion kick after scoring a touchdown. Also, in American football there are eleven players on each side while European football has fifteen players per side. Other differences include the number of downs that may be made before possession is changed and how many yards must be made to achieve a first down depending upon where it occurred between the two forty-yard lines at the beginning of play.