Historical clue formulations

• Situated long-term — 2025-07-01
• Built (on) — 2024-08-25
• ___ on a true story — 2024-08-05
• Located (in) — 2021-01-05
• Stationed (at) — 2018-03-11
• Stationed — 2016-08-03
• ___ on a true story — 2016-07-18
• Headquartered — 2016-04-14
• Founded — 2014-06-11
• Rooted — 2011-12-10
• Located — 2010-11-18
• Headquartered — 2010-10-03
• Grounded — 2009-01-02
• Set (in) — 2007-09-08
• Headquartered — 2007-08-23
• Headquartered — 2004-12-21
• ___ on a true story — 2004-03-22
• Stationed — 1997-10-01
• Established — 1997-01-27
• Situated — 1995-12-04
• Founded — 1994-02-21