when was the last time the oakland raiders won the super bowl?
Super Bowl XV
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 The team 's president , Bruce Allen addressed a letter dated May 23 , 2014 to Senator Reid repeating the position that the name was originated by Native Americans to refer to themselves , that the logo was also designed and approved by Native American leaders , that the vast majority of both Native Americans and the public do not find the name offensive . 

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 " Timeline – Raiders Historical Highlights " . Oakland Raiders . Archived from the original on August 21 , 2011 . Retrieved August 17 , 2011 . 

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 Historically , the Browns have been among the winningest franchises in American football history winning eight titles during a short period of time — 1946 , 1947 , 1948 , 1949 , 1950 , 1954 , 1955 , and 1964 . The Browns have never played in a Super Bowl . Former owner Art Modell 's relocation of the Browns after the 1995 season ( to Baltimore creating the Ravens ) , caused tremendous heartbreak and resentment among local fans . Cleveland mayor , Michael R. White , worked with the NFL and Commissioner Paul Tagliabue to bring back the Browns beginning in 1999 season , retaining all team history . 

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 From 1995 to 1996 , a lime @-@ green dinosaur named Champ was the team 's mascot . Following altercations with team management and league personnel during games , Champ , vis @-@ à @-@ vis his performer , did not return for the 1997 season . 

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 When the AFL and NFL merged before the 1970 season , Cleveland became part of the new American Football Conference ( AFC ) . While the Browns made it back to the playoffs in 1971 and 1972 , they fell into mediocrity through the mid @-@ 1970s . A revival of sorts took place in 1979 and 1980 , when quarterback Brian Sipe engineered a series of last @-@ minute wins and the Browns came to be called the " Kardiac Kids " . Under Sipe , however , the Browns did not make it past the first round of the playoffs . Quarterback Bernie Kosar , who the Browns drafted in 1985 , led the team to three AFC Championship games in the late 1980s but lost each time . In 1995 , Modell announced he was relocating the Browns to Baltimore , sowing a mix of outrage and bitterness among Cleveland 's dedicated fan base . Negotiations and legal battles led to an agreement where Modell was allowed to move the team , but Cleveland kept the Browns ' name , colors and history . After three years of suspension while the old municipal stadium was demolished and Cleveland Browns Stadium took its place , the Browns started play again in 1999 under new owner Al Lerner . Since resuming operations , the Browns have made the playoffs only once , as a wild @-@ card team in 2002 . 
