Historical clue formulations

• Thousand ___, city that's part of Greater Los Angeles — 2026-06-11
• Kentucky ___, annual horse race since 1875 — 2026-03-18
• Acorn droppers — 2025-12-08
• Sturdy hardwoods — 2024-11-03
• Acorn producers — 2024-02-12
• London's ___ Park, near Epsom Downs — 2023-08-11
• Sturdy trees — 2023-04-10
• They may throw shade — 2022-09-30
• "White" or "red" trees — 2022-07-13
• Kentucky ___ (sister race of the Kentucky Derby) — 2022-07-07
• Trees with acorns — 2022-06-06
• Trees under which truffles might grow — 2021-05-23
• Symbols of strength — 2021-01-15
• Acorn producers — 2019-10-07
• Acorn-producing trees — 2019-09-30
• Symbols of might — 2019-08-25
• Twelvesome in "Gone With the Wind" — 2019-03-03
• Acorn producers — 2018-10-16
• Wine barrel sources — 2017-06-24
• Many wine barrels come from them — 2017-03-08
• Symbols of might — 2014-02-22
• Sturdy ones — 2014-02-02
• Homes for squirrels — 2011-01-18
• Dumbarton ___ Conference (1944 meeting that laid the groundwork for the U.N.) — 2010-12-17
• Trees loved by squirrels — 2010-08-04
• Acorn producers — 2010-05-10
• Battle of Fair ___, 1862 — 2007-02-04
• Kentucky ___, annual Louisville race — 2006-10-20
• Acorn sites — 2006-10-10
• Sherman ___, Calif. — 2006-03-28
• Acorn droppers — 2006-02-23
• Shade providers — 2006-01-03
• Sturdy ones — 2005-11-06
• Producers of 46-Downs — 2004-11-30
• Thousand ___, Calif. — 2004-07-08
• Thousand ___, Calif. — 2003-11-04
• Stately florae — 2003-03-19
• Fair ___ (Civil War battle site) — 2003-01-12
• Pacific ___ College — 2001-02-03
• Dumbarton ___ (D.C. estate) — 2001-01-21
• Twelve ___ (Tara neighbor) — 2000-11-26
• Squirrels' haunts — 2000-08-06
• Thousand ___ — 2000-06-07
• Twelve ___ — 1999-03-21
• Slow-growing trees — 1999-02-02
• "'Neath the ___" (Wellesley school song) — 1998-11-29
• Annual horse race, with "The" — 1998-11-07
• Acorn sources — 1998-09-21
• Druidic worship sites — 1997-04-15
• Annual Epsom race, with "the" — 1995-11-03