Historical clue formulations

• Smooth-barked shade tree — 2024-11-14
• Budweiser beer is aged using this wood — 2024-05-15
• Wood for smoking andouille sausage — 2023-12-23
• Tree with triangular nuts — 2017-03-29
• Nut-bearing tree — 2017-01-16
• Slow-burning firewood — 2016-11-05
• Tree with burs — 2014-02-08
• Cherry alternative — 2010-04-02
• Nut producer — 2009-01-28
• Nut producer — 2007-11-25
• Smooth-barked tree — 2005-12-06
• Plywood source — 2004-12-18
• Tree that people carve their initials in — 2004-08-23
• Kind of nut — 2001-07-29
• Shade tree — 1997-05-07
• Tree good for carving on — 1994-07-17