American football rules
Super Bowl LI was the first Super Bowl to go into overtime with a 28-all tie between the Atlanta Falcons and New England Patriots, which the Patriots eventually won with James White scoring a touchdown on the Patriots' first drive.
New England Patriots
During the 1970s, the Patriots had some success, earning a berth to the playoffs in 1976—as a wild card team—and in 1978—as AFC East champions. They lost in the first round both times. In 1985, they returned to the playoffs, and made it all the way to Super Bowl XX, which they lost to the Chicago Bears 46–10. Following their Super Bowl loss, they returned to the playoffs in 1986, but lost in the first round. The team would not make the playoffs again for eight more years. During the 1990 season, the Patriots went 1–15. They changed ownership three times in the ensuing 14 years, being purchased from the Sullivan family first by Victor Kiam in 1988, who sold the team to James Orthwein in 1992. Orthwein intended to move the team to his native St. Louis, Missouri (where it would have been renamed as the St. Louis Stallions), but instead sold the team in 1994 to its current owner Robert Kraft.