Question: The stadium where the San Francisco 49ers won their second Super Bowl was opened in which year ?

text: Super Bowl
Venues -- Host stadiums
A total of 26 different stadiums , six of which no longer exist and one of which does not yet exist , either have hosted or are scheduled to host Super Bowls . The years listed in the table below are the years the game was actually played ( will be played [ ˇ ] ) rather than what NFL season it is considered to have been .
The Super Bowl is the annual championship game of the National Football League (NFL) played between mid-January and early February. It is the culmination of a regular season that begins in the late summer of the previous year. The game was created as part of the merger agreement between the NFL and its rival the American Football League (AFL). It was agreed that the two champion teams would begin playing in an annual AFL-NFL World Championship Game until the merger officially began in 1970. The first game was played on January 15, 1967 after both leagues had completed their respective 1966 seasons. After the merger, each league was re-designated as a conference, and the game has since been played between the conference champions to determine the NFL's league champion. The NFL restricts the use of its Super Bowl trademark, and it is frequently referred to as the big game or other generic terms by non-sponsoring corporations. The New England Patriots and the Pittsburgh Steelers have the most Super Bowl championship titles with six each. The Patriots have the most Super Bowl appearances with 11. The National Football Conference (NFC) and the American Football Conference (AFC) are tied with 27 Super Bowl wins each. The Super Bowl is the second-largest day for U.S. food consumption, after Thanksgiving Day. In addition, the Super Bowl has frequently been the most-watched American television broadcast of the year; the seven most-watched broadcasts in American television history are Super Bowls.
Stadium Location No . hosted Years hosted
Mercedes-Benz Superdome , formerly Louisiana Superdome New Orleans , Louisiana 7 ( 8 ) 1978 , 1981 , 1986 , 1990 , 1997 , 2002 , 2013 , 2024
Hard Rock Stadium , formerly Joe Robbie Stadium , Pro Player Stadium , Dolphin Stadium , and Sun Life Stadium Miami Gardens , Florida 6 1989 , 1995 , 1999 , 2007 , 2010 , 2020
Orange Bowl Miami , Florida 5 1968 , 1969 , 1971 , 1976 , 1979
Rose Bowl Pasadena , California 5 1977 , 1980 , 1983 , 1987 , 1993
Tulane Stadium New Orleans , Louisiana 3 1970 , 1972 , 1975
Qualcomm Stadium , formerly Jack Murphy Stadium , now known as SDCCU Stadium San Diego , California 3 1988 , 1998 , 2003
Raymond James Stadium Tampa , Florida 2 ( 3 ) 2001 , 2009 , 2021
State Farm Stadium , formerly University of Phoenix Stadium Glendale , Arizona 2 ( 3 ) 2008 , 2015 , 2023
Los Angeles Memorial Coliseum Los Angeles , California 2 1967 , 1973
Tampa Stadium Tampa , Florida 2 1984 , 1991
Georgia Dome Atlanta , Georgia 2 1994 , 2000
NRG Stadium , formerly Reliant Stadium Houston , Texas 2 2004 , 2017
Rice Stadium Houston , Texas 1 1974
Pontiac Silverdome Pontiac , Michigan 1 1982
Stanford Stadium Stanford , California 1 1985
Hubert H. Humphrey Metrodome Minneapolis , Minnesota 1 1992
Sun Devil Stadium Tempe , Arizona 1 1996
Alltel Stadium , formerly Jacksonville Municipal Stadium and EverBank Field , now TIAA Bank Field Jacksonville , Florida 1 2005
Ford Field Detroit , Michigan 1 2006
AT & T Stadium Arlington , Texas 1 2011