Historical clue formulations

• Initialism that might have a ring to it? — 2022-05-06
• Org. for lightweights — 2020-05-17
• Ring letters — 2019-03-24
• Pugilists' org. — 2018-06-19
• Org. awarding titles to Mike Tyson and Tyson Fury — 2018-03-06
• Ring letters — 2018-02-23
• Ring org. — 2017-10-27
• Org. for which Mike Tyson twice held the heavyweight title — 2017-06-27
• Org. awarding 5-Downs — 2016-07-23
• Ring letters — 2016-04-15
• Ring org. — 2014-07-27
• Ring org. — 2013-12-10
• Ring org. — 2012-03-13
• Bout-sanctioning org. — 2011-10-03
• Pugilists' grp. — 2010-09-29
• Tate and Bowe were once champions of it: Abbr. — 2010-05-12
• Org. in which people get belted — 2010-04-03
• Org. for heavyweights — 2009-05-26
• Ring regulator: Abbr. — 2007-11-04
• Ring org. — 2007-03-23
• Pugs' org. — 2007-01-17
• Org. that awards belts — 2006-05-30
• Org. in which decisions are awarded — 2006-04-22
• I.B.F. rival — 2004-08-19
• Ring org. — 2004-04-29
• Ring org. — 2002-02-24
• Ring org. — 2001-06-03
• Ring org. — 1998-08-04
• Ring org. — 1997-07-27
• Pugilists' org. — 1996-09-20
• Org. for Tyson — 1996-05-12