Historical clue formulations

• Part of a calendar septet, and a phonetic hint to this puzzle's theme — 2024-01-09
• Super ___ — 2022-09-24
• What the "Mardi" of Mardi Gras means — 2018-02-07
• Super ___ — 2016-08-13
• Mardi Gras time — 2015-11-15
• Payback time for Wimpy — 1999-08-24
• Time to vote — 1998-09-03
• Lent preceder — 1998-05-07