Historical clue formulations

• Preceded, with "to" — 2025-07-06
• Preceded, with "to" — 2015-10-18
• Was a prelude (to) — 2014-03-12
• Preceded, with "to" — 2013-11-11
• Preceded, with "to" — 2011-06-25
• Preceded, with "to" — 2009-05-14
• Introduced, with "to" — 2005-04-15