Historical clue formulations

• Inuit skin boat — 2023-08-30
• Inuit boat — 2021-11-01
• Boat sometimes built around a whalebone frame — 2020-11-01
• Walrus-skin boat — 2012-11-13
• Eskimo boat — 2011-01-25
• Eskimo boat — 2010-12-27
• Eskimo boat — 2009-01-28
• Literally, "women's boat" — 2008-04-04
• Eskimo boat — 2005-05-17
• Eskimo boat — 1997-08-26
• Eskimo boat — 1997-01-27
• Inuit craft — 1996-04-14