Historical clue formulations

• Forget-me-___ (blue flowers) — 2023-12-04
• What dashes may represent in internet searches — 2019-07-07
• Forget-me-___ — 2014-01-02
• Have-___ (poor people) — 2013-02-04
• Have-___ (lower economic group) — 2008-04-08
• Have-___ (poor people) — 2007-11-27
• Relatives of AND's and OR's in Boolean logic — 2006-11-05
• Have-___(the poor) — 1996-03-13