Historical clue formulations

• Former — 2026-05-17
• Erstwhile — 2023-01-18
• Former — 2022-11-10
• Former — 2018-07-11
• Erstwhile — 2018-05-27
• Ex- — 2015-01-22
• Former — 2013-12-20
• Erstwhile — 2006-01-24
• Past — 2005-02-27
• Past — 2003-03-29
• Past — 2001-07-06
• Past — 2000-04-28
• Former — 1999-10-21
• Past — 1997-07-26