Historical clue formulations

• Sped-up part of a contest commercial — 2019-07-17
• Game sheet — 2018-02-10
• See 31-Across — 2014-11-04
• Regulations — 2014-03-17
• Board game insert — 2013-03-18
• Contest specifications — 2010-06-28
• Is way cool — 2009-05-30
• Recreation center posting — 2008-07-28
• Game sheet — 2007-10-08
• Hoyle's listings — 2004-12-22
• Contest specifications — 2004-07-12
• Game needs — 2001-12-29
• Notepaper feature — 2000-11-26
• Robert's ___ of Order — 2000-05-08