Historical clue formulations

• Person being used by another — 2022-10-03
• Person who's being used — 2020-06-28
• Dupe — 2013-06-07
• Tool — 2013-04-12
• Tool — 2010-11-24
• Tool — 2003-10-19
• Dupe — 1999-09-02
• Dupe — 1999-02-21
• Dupe — 1994-08-25