Historical clue formulations

• Where a yellow ribbon is tied in a 1973 #1 hit — 2020-02-06
• Symbol of strength — 2017-10-29
• Image on the Connecticut state quarter — 2016-03-13
• Acorn, eventually — 2015-03-24
• Symbol of sturdiness — 2008-01-07
• Symbol of strength — 2007-11-04
• Yellow ribbon site — 2003-12-15
• Symbol of strength — 2003-03-29
• Ribbon holder of song — 1996-02-04
• Yellow ribbon site — 1994-09-24