Historical clue formulations

• Metric unit of weight — 2026-07-05
• British unit of mass — 2024-05-23
• Megagram — 2023-08-27
• Weight on the Isle of Wight — 2021-06-02
• British weight — 2019-05-18
• Equivalent of a megagram — 2018-08-25
• Unit for a lorry — 2016-09-21
• 1,000 kilograms — 2015-07-19
• 1,000 kilogrammes — 2015-02-25
• Metric weight — 2014-09-05
• English weight — 2011-09-25
• Metric weight — 2008-11-23
• British weight — 2008-08-07
• Heavy weight, in France — 2006-04-27
• Metric unit — 2002-04-06
• 1,000 kilograms — 2001-11-28
• 1,000 kilograms — 2001-01-03