The United States Football League (USFL) was an American football league which was in active operation from 1983 to 1987. It played a spring/summer schedule in its first three seasons and a traditional autumn/winter schedule was set to commence before league operations ceased. However, after its inaugural season, the United States Football League was plagued with franchise instability. A number of franchises either relocated or merged with others. However, there were franchises in several cities without NFL teams which would later receive them, such as Jacksonville, Florida.