Historical clue formulations

• Guiding light — 2023-09-17
• Camper's light — 2018-07-29
• DC Comics hero with a magic ring — 2018-06-21
• Spelunker's aid — 2014-05-10
• Pathfinder? — 2013-08-16
• You can make light of it — 2007-12-29
• Light case — 2004-05-29
• Camping item — 2002-08-11
• Jacklight — 2001-09-20
• Revere signaler — 1998-07-04