In 1999 researchers changed a few of Babe Ruth's season totals after carefully reviewing box scores. Major League Baseball verified the research, released the new totals during a press conference, then had to remove the correct totals from the books due to a conflict with Elias Sports Bureau (their "official" statistician).
Did you know that hall of famer Ted Williams appears five times in the top twenty (5th, 5th, 8th, 17th & 20th) single season bases on balls leaderboard, but he finished "only" fourth (4th) overall in career walks?
Many fans believed that Mark McGwire's seventy home run season would have enabled him to eventually break Babe Ruth's record of one-hundred seventy single season walks. Three years later the once "unbreakable" record was broken by Barry Bonds during his spectacular seventy-three home run season, one year after that Bonds SHATTERED his own record with an all new mark and in 2004 a plateau of unimaginable heights was reached when he became the first & only player in history with two-hundred plus walks in a season.