Historical clue formulations

• .1111, .2222, .3333, etc. — 2024-09-28
• Final innings, usually — 2021-11-14
• Last innings, typically — 2019-08-04
• Individual tic-tac-toe squares — 2019-05-12
• Portions of about 11% — 2009-11-04
• Odd shares — 2007-12-16
• Critical innings — 2004-08-15
• Intervals of an octave and a second — 2001-08-05