Historical clue formulations

• Piece of ice in the drink? — 2026-08-07
• Result of breaking the ice? — 2026-01-10
• RMS Titanic's undoer — 2025-09-01
• Floating mass — 2025-04-24
• Floating chunk of 6-Down — 2023-10-31
• Most of it is found underwater — 2023-03-12
• Chunk floating in the Arctic Ocean — 2023-01-30
• Floating ice chunk — 2022-12-26
• Icy detachment — 2022-05-14
• Icy hazard at sea — 2022-03-22
• On the surface it might not look like much — 2021-10-07
• Name suffix meaning "mountain" — 2021-08-08
• North Atlantic shipping menace — 2021-05-25
• Cartoonist Dave famous for "The Lighter Side of ..." — 2021-03-14
• The Titanic's undoing — 2020-08-11
• Block at sea — 2019-11-01
• Rescue site for a polar bear — 2019-07-28
• Floating mass in the North Atlantic — 2019-07-02
• What the Titanic had a disastrous encounter with — 2018-12-10
• Titanic's undoing — 2018-02-18
• Something coming off the shelf? — 2018-01-28
• Former piece of an ice shelf — 2017-10-03
• Chunk of ice in the ocean — 2017-02-06
• Floating block of ice — 2016-11-28
• Something that might fall off the shelf? — 2016-06-19
• North Atlantic hazard — 2016-01-21
• "Lulu" opera composer — 2015-05-02
• Belated observation of 4/14/12 — 2014-11-06
• Something that's fallen off a shelf? — 2014-09-13
• Sea lane danger — 2013-09-15
• Arctic Ocean sighting — 2013-05-07
• It may come off the shelf — 2013-04-11
• Ship hazard — 2012-09-19
• Titanic's undoing — 2012-06-25
• Maritime danger — 2012-03-11
• Floating ice mass — 2011-05-09
• Sight in the Arctic Ocean — 2009-07-21
• Ice in the sea — 2008-09-01
• Mad magazine cartoonist Dave — 2008-07-20
• Arctic floater — 2007-12-03
• It keeps its head above water — 2006-04-06
• Only about 10% of it is visible — 2005-07-27
• Big chip off the old block? — 2005-07-24
• Shipping hazard — 2005-07-13
• BAFFIN BAY SIGHT — 2002-10-02
• Sight near Antarctica — 2002-07-11
• Arctic Ocean hazard — 2002-01-29
• Composer Alban — 2001-08-15
• "Lulu" composer — 2001-06-02
• Chunk in the Arctic Ocean — 2001-02-06