Historical clue formulations

• Animal without feet — 2015-10-11
• "... peas in ___" — 2015-09-09
• Like peas in ___ — 2014-03-30
• Footless creature — 2013-09-29
• Like two peas in ___ — 2012-01-22
• Like two peas in ___ — 2010-03-09
• Like two peas in ___ — 2005-03-29
• Snake or eel, e.g. — 2004-07-09
• Like peas in ___ — 2004-05-09
• "... peas in ___" — 2002-02-17
• Footless animal — 2001-04-01
• Like two peas in ___ — 2000-07-09
• Snake, for one — 2000-05-28
• Footless animal — 1999-02-19
• Snake, for one — 1998-09-13
• Footless critter — 1998-03-22
• "...peas in ___" — 1997-12-03
• Like peas in _____ — 1995-09-18