Historical clue formulations

• Film that lasts a while? — 2024-09-26
• What's left — 2017-12-19
• Remains — 2015-07-26
• Leftovers — 2011-10-06
• Ashes, e.g. — 2007-02-19
• What's left — 2006-10-15
• Cleanup target — 2004-05-22
• Dregs — 1998-08-23
• Dregs — 1996-05-24