Historical clue formulations

• Let through — 2024-03-16
• Permitted — 2024-02-04
• Gave the green light — 2022-10-11
• Approved — 2013-06-04
• Green-lighted — 2004-03-28
• Green-lit — 2003-07-20
• Gave the go-ahead — 1996-09-26
• Confirmed — 1996-02-15