Question: The Curse of Rocky Colavito is one of several sports superstitions centered on the failure to win a championship in any major league sport for how many years?

<P0-S0> The 1965 Cleveland Indians season was a season in American baseball. <P0-S1>  The team finished fifth in the American League with a record of 87–75, 15 games behind the Minnesota Twins. <P0-S2>  The Indians played .500 ball for the first 40 games, then eventually heated up going on a 10-game winning streak at one point improving their record to 37-24. <P0-S3>  They would peak at 46-28, but would cool off significantly after the all star break (going 41-47 the rest of the way) and would only spend six days in first place. <P0-S4>  Still, the Indians 87-75 record would be the best win-loss record they would post between 1959 and 1994. <P0-S5>  This season also marked the return of Rocky Colavito. <P0-S6>  This led to an increase in attendance (a season after the Indians almost left Cleveland, due to low attendance). <P0-S7>  The trade itself ended up being a disaster in the long run, even though it was successful short term (for one season). <P0-S8>  The Indians were the only team to win the regular season series vs the AL pennant winning Twins (who would lose to the Dodgers in 7 games in the 1965 World Series). <SEP> <P1-S0> The Cleveland sports curse was a sports superstition involving the city of Cleveland, Ohio, and its major league professional sports teams, centered on the failure to win a championship in any major league sport for a period of 52 years, from 1964 to 2016. <P1-S1>  Three major league teams based in Cleveland contributed to belief in the curse: the Browns of the National Football League (NFL); the Cavaliers of the National Basketball Association (NBA); and the Indians of Major League Baseball (MLB). <P1-S2>  Combined with the short-lived Barons franchise of the National Hockey League (NHL), Cleveland teams endured an unprecedented 147-season championship drought, having not won a title since the Browns defeated the Baltimore Colts in the 1964 NFL Championship Game two seasons prior to the first Super Bowl. <SEP> <P2-S0> The Heisman curse is a term coined to reference a two-part assertion of a negative future for the winning player of the Heisman Trophy. <P2-S1>  The "curse" supposes that any college football player who wins the Heisman plays on a team that will likely lose its subsequent bowl game. <P2-S2>  The trend of post-award failure has garnered the attention of the mainstream media. <P2-S3>  Talk of a curse in relation to bowl results was particularly prevalent from 2003 to 2008, when six Heisman Trophy winners compiled a cumulative 1–5 bowl game record, and five of those six led number one ranked teams into the Bowl Championship Series (BCS) National Championship Game as favorites (Heisman Trophy winners, including Reggie Bush, who gave back his Heisman Trophy, are 4–8 overall in the BCS National Championship Game and College Football Playoff National Championship, although prior to 2009 they were 1–6). <P2-S4>  Additionally, the Heisman curse asserts that in most cases a Heisman winner will have either a poor career in the National Football League (NFL), or in fact not even see such a football career at all. <P2-S5>  Although many Heisman winners have not enjoyed success at the professional level, including players like Matt Leinart, Andre Ware, Jason White, Rashaan Salaam, Eric Crouch, Ty Detmer, Troy Smith and Gino Torretta, proponents of the "curse" rarely cite highly successful players such as Barry Sanders, Charles Woodson, Eddie George, Tim Brown, Bo Jackson, Marcus Allen, Earl Campbell, and Tony Dorsett among the notables. <SEP> <P3-S0> The Curse of Rocky Colavito is a sports-related curse that supposedly prevents the Cleveland Indians Major League Baseball (MLB) franchise from winning, be it the World Series, the American League (AL) pennant, reaching postseason play, or even getting into a pennant race. <P3-S1>  Its origin is traced back to the unpopular trade of right fielder Rocky Colavito to the Detroit Tigers for Harvey Kuenn in 1960. <P3-S2>  It was not claimed that Colavito placed the curse, and he has denied doing so. <P3-S3>  It is one of several curses believed to have stricken the city of Cleveland's major sports franchises for decades.