Question: When was the baseball team winning the world series in 2015 baseball created?

full_context: Document 1: Cleveland Indians: The Cleveland Indians are an American professional baseball team based in Cleveland, Ohio. The Indians compete in Major League Baseball (MLB) as a member club of the American League (AL) Central division. Since 1994, they have played at Progressive Field and are the defending American League champions. The team's spring training facility is at Goodyear Ballpark in Goodyear, Arizona. Since their establishment as a major league franchise in 1901, the Indians have won two World Series championships: in 1920 and 1948, along with eight Central Division titles and six American League pennants. The Indians' current World Series championship drought is the longest active drought, and through 2016 is the fifth - longest in baseball history.
Document 2: History of the Oakland Athletics: The history of the Athletics Major League Baseball franchise spans the period from 1901 to the present day, having begun in Philadelphia before moving to Kansas City in 1955 and then to its current home in Oakland, California, in 1968.
Document 3: 2017 World Series: The 2017 World Series was the championship series of Major League Baseball's (MLB) 2017 season. The 113th edition of the World Series was played between October 24 and November 1. It was a best - of - seven playoff between the National League (NL) champion Los Angeles Dodgers and the American League (AL) champion Houston Astros. It was sponsored by the internet television service YouTube TV and officially known as the World Series presented by YouTube TV.
Document 4: Cleveland Indians: The Cleveland Indians are an American professional baseball team based in Cleveland, Ohio. The Indians compete in Major League Baseball (MLB) as a member club of the American League (AL) Central division. Since , they have played at Progressive Field. The team's spring training facility is at Goodyear Ballpark in Goodyear, Arizona. Since their establishment as a major league franchise in 1901, the Indians have won two World Series championships: in 1920 and 1948, along with 10 Central Division titles and six American League pennants. The Indians' current World Series championship drought is the longest active drought among all 30 current Major League teams.
Document 5: Kansas City Royals: The name Royals originates from the American Royal, a livestock show, horse show, rodeo, and championship barbeque competition held annually in Kansas City since 1899. The name also fits into something of a theme for other professional sports franchises in the city, including the Kansas City Chiefs of the NFL, the former Kansas City Kings of the NBA, and the former Kansas City Monarchs of the Negro National League.
Document 6: 2016 World Series: The 2016 World Series was the 112th edition of Major League Baseball's championship series, a best - of - seven playoff between the National League (NL) champion Chicago Cubs and the American League (AL) champion Cleveland Indians, the first meeting of those franchises in postseason history. The series was played between October 25 and November 2. The Indians had home - field advantage because the AL had won the 2016 All - Star Game. It was also the last World Series to have home - field advantage determined by the All - Star Game results; since 2017, home - field advantage is awarded to the team with the better record.
Document 7: List of World Series champions: The Seattle Mariners and the Washington Nationals (formerly Montreal Expos) are the only current Major League Baseball franchises to have never appeared in a World Series; the San Diego Padres, Colorado Rockies, Texas Rangers (formerly the 1961 -- 1971 version of the Washington Senators), Tampa Bay Rays, and Milwaukee Brewers (formerly Seattle Pilots) have all played in the Series but have never won. The Toronto Blue Jays are the only franchise from outside the United States to appear in a World Series, winning in 1992 and 1993. The current World Series champions are the Houston Astros.
Document 8: 2015 World Series: The 2015 World Series was the championship series of Major League Baseball's (MLB) 2015 season. The 111th edition of the World Series, it was a best - of - seven playoff between the National League (NL) champion New York Mets and the American League (AL) champion Kansas City Royals. The series was played between October 27 and November 1, with the Royals winning the series 4 games to 1. It was the first time since the 2010 World Series that the World Series extended into November. The Royals became the first team since the Oakland Athletics in the 1989 World Series to win the World Series after losing in the previous year. It was the first World Series to feature only expansion teams and the first since the 2007 World Series to not feature the Philadelphia Phillies, St. Louis Cardinals, or San Francisco Giants as the NL champions.
Document 9: 2016 World Series: The 2016 World Series was the championship series of Major League Baseball's (MLB) 2016 season. The 112th edition of the World Series, it was a best - of - seven playoff between the National League (NL) champion Chicago Cubs and the American League (AL) champion Cleveland Indians, the first meeting of those franchises in postseason history. The series was played between October 25 and November 3. The Indians had home - field advantage because the AL had won the 2016 All - Star Game. It was also the last World Series to have home - field advantage determined by the All - Star Game results; since 2017, home - field advantage is awarded to the team with the better record.
Document 10: Kauffman Stadium: Kauffman Stadium (/ ˈkɔːfmən /), often called ``The K '', is a baseball park located in Kansas City, Missouri, that is home to the Kansas City Royals of Major League Baseball (MLB). It is part of the Truman Sports Complex together with the adjacent Arrowhead Stadium, home of the Kansas City Chiefs of the National Football League. The ballpark is named for Ewing Kauffman, the founder and first owner of the Royals. It opened in 1973 as Royals Stadium and was named for Kauffman on July 2, 1993. The ballpark's listed seating capacity since 2009 is 37,903.
Document 11: 2005 World Series: The 2005 World Series was the 101st edition of Major League Baseball's championship series, a best - of - seven playoff between the American League (AL) champions Chicago White Sox and the National League (NL) champions Houston Astros. The White Sox swept the Astros four games to none in the series, played between October 22 to 26, winning their third World Series championship and their first in 88 seasons. Although the series was a sweep, all four games were quite close, being decided by two runs or fewer.
Document 12: Kansas City Royals: The Kansas City Royals are an American professional baseball team based in Kansas City, Missouri. The Royals compete in Major League Baseball (MLB) as a member team of the American League (AL) Central division. The team was founded as an expansion franchise in 1969, and has participated in four World Series, winning in 1985 and 2015, and losing in 1980 and 2014.
Document 13: 2017 World Series: The 2017 World Series was the championship series of Major League Baseball's (MLB) 2017 season. The 113th edition of the World Series, it was played between October 24 and November 1. The series was a best - of - seven playoff between the National League (NL) champion Los Angeles Dodgers and the American League (AL) champion Houston Astros. It was sponsored by the Internet television service YouTube TV and officially known as the World Series presented by YouTube TV.
Document 14: 2016 World Series: The 2016 World Series was the championship series of Major League Baseball's (MLB) 2016 season. The 112th edition of the World Series, it was a best - of - seven playoff between the National League (NL) champion Chicago Cubs and the American League (AL) champion Cleveland Indians, the first meeting of those franchises in postseason history. The series was played between October 25 and November 2. The Indians had home - field advantage because the AL had won the 2016 All - Star Game. It was also the last World Series to have home - field advantage determined by the All - Star Game results; since 2017, home - field advantage is awarded to the team with the better record.
Document 15: Boston Red Sox: The Boston Red Sox are an American professional baseball team based in Boston, Massachusetts. The Red Sox compete in Major League Baseball (MLB) as a member club of the American League (AL) East division. The Red Sox have won eight World Series championships and have played in twelve. In addition, they won the 1904 American League pennant, but were not able to defend their 1903 world championship when the New York Giants refused to participate in a World Series. Founded in 1901 as one of the American League's eight charter franchises, the Red Sox 'home ballpark has been Fenway Park since 1912. The ``Red Sox ''name was chosen by the team owner, John I. Taylor, around 1908, following the lead of previous teams that had been known as the`` Boston Red Stockings'', including the forerunner of the Atlanta Braves.
ground_truth: 1969
sub_queries: who won the world series in 2015 baseball Answer: Kansas City Royals
When was Kansas City Royals created? Answer: 1969