Historical clue formulations

• Gold or silver, but not bronze — 2026-07-26
• Mercury, but not Venus — 2026-03-04
• He or I, but not she — 2025-08-12
• Palladium, e.g. — 2025-05-22
• Erbium, terbium or ytterbium — 2022-08-21
• One of more than 115 on a table — 2021-10-12
• U, V, W or Y, but not X — 2021-08-26
• He or I, but not you? — 2021-04-02
• The answer to each clue that says "This, on the periodic table" — 2017-10-10
• Something found on a chemist's table — 2013-10-30
• One of over 100 on a table — 2013-03-24
• Honda model — 2010-12-05
• Gold or silver, but not bronze — 2010-04-14
• Electric device with terminals — 2009-04-10
• Mercury, e.g. — 2009-02-08
• Factor — 2008-02-09
• Honda model — 2007-04-05
• Normal habitat — 2005-12-17
• Copper or nickel — 2005-08-28
• Mercury, for one — 2004-07-18
• It's found in a table — 2002-07-25
• Nickel, but not dime — 2000-10-11
• Natural setting — 2000-10-07
• Sodium or chlorine — 1999-07-04
• Milieu — 1998-09-27
• Part of a table? — 1997-12-27
• Earth, wind or fire — 1997-07-15
• Nickel, e.g. — 1997-04-25
• It may be found in a table — 1996-05-29
• He or I may represent one — 1995-07-28
• Natural habitat — 1994-04-28