Historical clue formulations

• Johnnycake grain — 2023-07-16
• Indian corn — 2014-11-17
• Mesoamerican crop — 2013-10-06
• It's lighter than mustard — 2013-01-18
• Yellow shade — 2012-05-18
• Polenta grain — 2011-06-28
• Indian corn — 2011-05-23
• Hue similar to chrome lemon — 2009-11-14
• Original Thanksgiving fare — 2009-07-15
• It comes in ears — 2009-05-08
• Indian corn — 2008-12-09
• Pale yellow — 2008-09-05
• Yellow shade — 2005-06-22
• It's all ears — 2003-12-28
• Indian corn — 2002-11-04
• Corn — 2002-09-23
• Corn — 2002-08-19
• Powwow fare — 2002-03-23
• Indian corn — 2002-02-27
• It has big ears — 2001-05-06
• Pale yellow — 2001-02-23
• Yellow shade — 1999-12-19
• Pale yellow — 1999-08-30
• Indian corn — 1999-06-28
• Indian corn — 1998-06-22
• Pale yellow — 1998-06-04
• Indian corn — 1997-07-21
• Corn — 1997-06-15
• Mayan food staple — 1995-04-08