The official football is the same size and weight of a National Football League ball, but it features exclusive Arena Football logos. Players and formations: there are eight players on the pitch, a 21-man active roster, and a four-man inactive roster. The offense operates from the 20-yard line, with points scored via free kicks or penalties. There are two timeouts per half. The first indoor football game was played in 1974 by the Oakland Raiders and Seattle Seahawks with a leather ball that they threw on the ground. Today's athletes do everything from dance to drill to throw the ball at high speeds for enjoyment or competition. Though athletics programs have existed for men since the early 1900s, it was not until the 1970s that football became a prominent part of their structure. Since then, it has become an important aspect of college sports. Arena football combines elements of American football, basketball, and hockey. The sport uses a football, which has six inches around its circumference replaced by a rubber ball that can weigh up to 14 pounds. This makes it harder to handle than a standard ball that would go out of shape if used in this manner. The game also uses two ten-minute quarters instead of three fifteen-minute periods as well as two five-minute breaks between halves. In addition, there are no yards between players - they are all within a court's boundary lines.