Historical clue formulations

• Green-lit — 2025-04-13
• Gave the go-ahead — 2025-03-16
• Approved — 2025-01-10
• Signed off on — 2021-08-15
• Green-lit — 2019-10-21
• Green-lit — 2017-09-10
• Green-lit — 2015-04-25
• Green-lighted, as a project — 2014-06-23
• Not nixed — 2014-03-14
• Sanctioned — 2013-12-12
• Green-lit — 2011-03-15
• Given the nod — 2010-11-11
• Having a permit — 2010-06-24
• Rubber-stamped — 2009-07-15
• Initialed — 2008-04-24
• Let pass — 2007-12-27
• Gave the thumbs-up — 2007-05-30
• Assented to — 2006-08-08
• Blessed — 2005-03-12
• Let pass — 2004-07-31
• Gave the go-ahead — 2004-02-18
• Green-lighted — 2003-05-11
• Gave the thumbs up — 2002-06-20
• Authorized — 2001-10-26
• Green-lighted — 2001-06-17
• Gave the go-ahead — 2001-05-06
• Gave the go-ahead — 1999-06-18
• Endorsed — 1998-07-30
• Accepted — 1998-05-17
• Initialed — 1997-09-20
• Accepted — 1997-01-24