The Boston Red Sox’ dismal 20th century world series record was believed to be the result of a curse put on the sox when they sold Babe Ruth to the Yankees. I don’t really believe that. Boston suffered mostly from bad ownership mixed with some bad luck.
You may recall the radio comedy team of Bob and Ray who were from Boston originally, but were on radio in NY. Ray Goulding was a rabid Red Sox fan. When he died in 1990 his obit ended: “Cause of death: Boston Red Sox.”