Historical clue formulations

• Flashing light — 2026-04-09
• Flashing light at a concert — 2022-11-14
• Flashing light — 2022-03-15
• Flasher at a rock concert — 2020-05-28
• Light at a dance party — 2018-11-29
• Blinking light — 2017-09-10
• Flickering light — 2017-03-03
• Disco light — 2013-12-02
• Light up at a dance? — 2007-07-06
• Flash light? — 2006-08-06
• Dance floor light — 2006-05-03
• Photographer's equipment — 2005-05-22
• Disco flasher — 2004-01-06
• It won't go on for long — 2002-05-24
• Flash light? — 2001-08-17
• It's flashy — 1999-12-19
• Disco pulser — 1999-09-17
• Photographer's light — 1999-02-24
• Disco light — 1996-01-22
• Lighting device — 1995-11-03
• Photog's flash — 1995-09-04