Historical clue formulations

• One of twenty-five in this clue — 2023-04-16
• Printer setting — 2022-07-16
• Word with block or chain — 2021-08-14
• It's not legal — 2020-03-15
• Word with fan or form — 2018-02-17
• Something sent to Santa — 2016-12-19
• Renter from a renter — 2016-02-24
• Athletic recognition — 2015-03-10
• Varsity award — 2014-01-05
• See 29-Across — 2013-09-27
• With 9-Across, post office mail slot ... or a hint to this puzzle's theme — 2011-02-02
• Bit of comic strip text — 2010-10-21
• E-mail predecessor — 2010-10-04
• Thorn, once — 2010-01-08
• Beth, for one — 2008-11-30
• Athletic award — 2007-01-17
• Athletic award — 2003-11-19
• Envelope's contents — 2003-04-14
• A, B or C — 2001-08-13
• An initial, e.g. — 2001-03-26
• Steno's work — 2000-10-06
• Item on a high school jacket — 1999-12-06
• Play varsity ball — 1999-08-29
• Scrabble unit — 1999-03-08
• Missive — 1995-09-19