The Silverdome refers to the stadium that opened in what year?
Pontiac Silverdome The Pontiac Silverdome, formerly known as the Silverdome, is a stadium in Pontiac, Michigan, United States, which is a suburb of Detroit. It opened in 1975 and sits on 127 acre of land. When the stadium opened, it featured a fiberglass fabric roof held up by air pressure, the first use of the technique in a major athletic facility. The roof has since been destroyed. With a seating capacity of 82,000, it was the largest stadium in the National Football League (NFL) until FedExField (91,000 capacity) in suburban Washington, D.C., opened in 1997.
1977–78 NFL playoffs The National Football League playoffs for the 1977 season began on December 24, 1977. The postseason tournament concluded with the Dallas Cowboys defeating the Denver Broncos in Super Bowl XII, 27–10, on January, 1978, January 15, 1978, at the Louisiana Superdome in New Orleans, Louisiana.