Historical clue formulations

• Partners of dits, in Morse code — 2023-12-11
• "– – –" units in Morse code — 2023-07-03
• There are three of them in a Morse "O" — 2021-09-19
• Morse "Toto," totally — 2016-08-06
• Bits of Morse code — 2015-11-17
• "Tom," entirely, in Morse code — 2015-03-11
• Morse bits — 2011-11-20
• Counterparts of dits — 2011-09-06
• Three of these make an O — 2010-11-20
• Morse bits — 2010-05-06
• Code bits — 2006-05-13
• Partners of dits — 2002-01-14
• Morse bits — 2001-06-07
• Morse T's — 2001-01-25
• Partner of 4-Down — 2000-06-12
• Morse code bits — 1999-10-03
• Dits' partners — 1998-09-30
• All of T-O-M-T-O-M, in Morse code — 1998-05-23
• Morse code dashes — 1995-03-11
• Dits' counterparts, in Morse code — 1994-09-27