Historical clue formulations

• Throw in at the end — 2026-05-15
• Add as an afterthought — 2026-01-27
• Attach — 2024-01-26
• Append — 2021-04-04
• Attach to the end of — 2020-04-19
• Add, as an extra — 2019-01-30
• Attach — 2013-04-14
• Include as an extra — 2011-09-23