Historical clue formulations

• Attach, as a boutonniere — 2020-06-17
• Assign, as blame — 2017-07-11
• Attach, as a corsage — 2013-04-29
• Assign, as blame — 2012-11-06
• Ascribe to — 2011-12-16
• Attach to — 2011-07-24
• Evergreen with edible nuts — 2010-12-29
• Attach, as to a lapel — 2008-08-03
• Assign, as the blame — 2006-12-27
• Ascribe to — 2006-10-19
• Assign to, as blame — 2005-10-10
• Attach, in a way — 2005-02-12
• Assign to, as blame — 2000-01-23
• Attach to a lapel — 1997-11-25
• Attribute to — 1996-09-15
• Tree with edible seeds — 1994-09-08