The Super Bowl is the championship game of the National Football League (NFL), the highest level of professional American football in the United States, culminating a season that begins in the late summer of the previous calendar year. The Super Bowl uses Roman numerals to identify each game, rather than the year in which it is held. For example, Super Bowl I was played on January 15, 1967, following the regular season played in 1966, while Super Bowl XLV was played on February 6, 2011, to determine the champion of the 2010 regular season. - Source: Wikipedia
