Historical clue formulations

• Marked, as a box — 2024-07-03
• Chose at the ballot box — 2018-02-17
• Double-crossed? — 2014-10-25
• Marked, as a box — 2014-02-18
• Marked, as a questionnaire box — 2011-02-17
• Marked, as a box on a test — 2005-07-05
• Marked, as a paper ballot — 2003-06-29