Historical clue formulations

• Leave on a trip — 2026-04-26
• Trip ... or start a trip — 2019-05-10
• Depart — 2009-04-17
• Detonate — 2005-01-05
• Leave home — 2004-08-01
• Trigger — 2003-07-14
• Counterbalance — 2002-11-30