Question: When was the stadium the rookie-level minor league baseball affiliate of the Atlanta Braves plays in built?

Context paragraphs:
Gulf Coast League Braves: The Gulf Coast League Braves are the rookie-level minor league baseball affiliate of the Atlanta Braves.  The team plays at the Walt Disney World Resort at Champion Stadium at Disney's Wide World of Sports Complex.  The team is composed mainly of players who are in their first year of professional baseball either as draftees or non-drafted free agents from the United States, Canada, Dominican Republic, Venezuela, and other countries.

Kevin Blankenship: Kevin DeWayne Blankenship (born January 26, 1963) was a right-handed pitcher in Major League Baseball for the Chicago Cubs and Atlanta Braves.  A veteran minor league journeyman, Blakenship played in eight seasons with four different Major League Baseball farm systems during his time as a professional player.  Blankenships' career highlights came in 1988 and 1989 when his stellar pitching not only earned him back-to-back minor league all-star selections but also two separate major league call-ups to pitch for the Atlanta Braves and the Chicago Cubs, respectively.

The Diamond (Richmond, Virginia): The Diamond is a baseball stadium located in Richmond, Virginia, USA, on Boulevard.  It is the home of Richmond Flying Squirrels of the Eastern League and the Virginia Commonwealth University baseball team.  From 1985 to 2008, it was the home of the Richmond Braves, the Triple-A minor league baseball affiliate of the Atlanta Braves.  The Diamond seats 12,134 people for baseball; however, for Flying Squirrels games, advertising banners cover up the top rows of the upper deck, reducing seating capacity to 9,560.  It replaced the demolished Parker Field, which had been built in 1934, as part of the fair grounds.  Parker Field had been converted for baseball in 1954, replacing Mooers Field.  Parker Field housed the Braves from 1966 to 1984.  In 2003, part of The Diamond's roof was destroyed by Hurricane Isabel, and in 2004 a piece of a concrete beam (size of a football) fell on the stands below, though no fans were injured.

Champion Stadium: Champion Stadium is a baseball stadium located at the ESPN Wide World of Sports Complex in the Walt Disney World Resort.  The stadium was built in 1997.  It is the spring training home of the Atlanta Braves and is the home for the Rookie-league GCL Braves.  The stadium has a capacity of 9,500 including seating in the berm area.  It features four luxury boxes and two open-air party suites.  In January 2017, the Braves announced a formal agreement to move their spring training home to North Port, Florida.

Mississippi Braves: The Mississippi Braves, or M-Braves as they are referred to locally, are a minor league baseball team based in Pearl, Mississippi, a suburb of Jackson.  The team is the Class AA affiliate of the Atlanta Braves, and plays in the Southern League.  The team is owned and operated by Liberty Media, which also owns the Atlanta Braves.  Liberty purchased the Braves from Time Warner's Turner Broadcasting unit in 2007.

Austin Braves: The Austin Braves were a Minor League Baseball team in the East Division of the Texas League and were affiliated with the Milwaukee/Atlanta Braves.  Originally known as the Austin Senators from 1956 to 1964, they played at Disch Field.  In 1965, they became the Austin Braves coming in last place with an even record of 70-70.  In 1966, the Braves finished in fourth place with a losing record of 67-73.  In 1967, the team also finished in fourth place with a losing record of 69-71.  In 1968, the Atlanta Braves moved the Austin Braves to Shreveport, Louisiana, where they played as the Shreveport Braves of the Texas League from 1968 to 1970.

Dave Trembley: David Michael Trembley (born October 31, 1951 in Carthage, New York) is an American professional baseball executive who served as director of player development of the Atlanta Braves in 2015 .  Trembley has been the bench coach for the Houston Astros, and a manager of the Baltimore Orioles.  Before managing the Orioles Trembley was a minor league manager for twenty seasons compiling a 1369–1413 record.  He won two league titles and earned Manager of the Year awards in three leagues.  In December 2001, "Baseball America" selected him as one of minor league baseball's top five managers of the previous 20 years.  He served as a coach in the inaugural Futures Game in 1999 and also served as manager for the Southern League and Double-A All-Star Games that season.  Trembley has worked for the Baltimore Orioles, Chicago Cubs, Pittsburgh Pirates, San Diego Padres and Atlanta Braves.

Richmond Braves: The Richmond Braves were an American minor league baseball club based in Richmond, Virginia, the Triple-A International League affiliate of the Atlanta Braves from 1966 to 2008.  Owned by the parent Atlanta club and colloquially referred to as the R-Braves, they played their home games at a stadium called The Diamond on Richmond's Northside built for them in 1985, and before then Parker Field on the same site.  The franchise moved to Gwinnett County, Georgia in 2009 to play in the newly built Coolray Field as the Gwinnett Braves, following several years of unsuccessful lobbying for a new stadium in the Richmond metropolitan area.

Dave Bialas: David Bruce Bialas (born February 6, 1954) is an American former minor league baseball player and is currently the manager of the New York Yankees Class A Minor League Short Season team in Staten Island, New York and Major League Baseball coach.  He served as a coach for the Chicago Cubs from 1995 through 1999 and in 2002.  As a minor league outfielder and first baseman in the St. Louis Cardinals system, Bialas played 1021 games from 1973 through 1982, batting .274 in 3448 at bats, with 36 home runs, 214 RBIs and 263 runs scored.  As a minor league manager in the Cardinals' and Cubs' systems, he managed 1373 games, winning 711 and losing 662 for a winning percentage of .518.  On November 1, 2012, the Atlanta Braves announced Bialas as their next minor league fielding coordinator, replacing Dave Trembley.

Danville Braves: The Danville Braves are a minor league baseball team in Danville, Virginia.  They are an Advanced Rookie-level team in the Appalachian League and have been a farm team of the Atlanta Braves since 1982.  Since 1993, the Braves have played home games at American Legion Post 325 Field.  Opened in 1993, Legion Field seats 2,588 fans.  Previously, they played at Calfee Park in Pulaski, Virginia.

Supporting paragraphs: Gulf Coast League Braves Champion Stadium
Answer: 1997