American football evolved in the United States, from merging the sports of association football and rugby football together. The first match of American football was played on November 6, 1869, between two college teams, Rutgers and Princeton, under rules based on the association football rules of the time. During the latter half of the 1870s, colleges playing association football switched to the Rugby Union code, which allowed carrying the ball. Rutgers won the game 6 goals to 4. Till date College football popular and enjoyed as much as the professional.
Football is a full-contact sport. It makes it fun to watch, yet it also makes it the most dangerous sport. Injuries are relatively common and most of them occur during training sessions. That's why, unlike other sports, players are must wear a set of special protection. Football helmet and a set of shoulder pads are mandatory. Additional padding such as thigh pads and guards, knee pads, chest protectors, and mouthguards may be used as well. The most common types of injuries include strains, sprains, bruises, fractures, dislocations, and concussions.
The grand finale is the Super Bowl game between the champions of the NFC and AFC (usually held in the first Sunday in February).
Those NFL games have the highest average attendance (67,591) of any professional sports league in the world and the Super Bowl games account for many of the most watched television programs in American history. People literally go crazy for it. Those who are not so much in to sports watch it for the halftime performance by celebrities.
Fans of the game love themselves some good quality merchandise to support the team during the game or any outing. There are tons of online stores offering so-called "official" outfits of your favorite teams, but you can't trust all of them. However, there is the portal you can rely on for sure - NFL Shop. NFL has the online store created specifically for the demanding fans of this great game.