Historical clue formulations

• Secreted away — 2026-07-05
• Kept under wraps — 2026-04-25
• Buried — 2026-02-25
• Was out of sight — 2025-07-06
• Holed up — 2025-05-28
• Obfuscated — 2025-03-21
• Went underground — 2025-03-05
• Concealed — 2024-12-29
• Secreted — 2024-10-20
• Put out of sight — 2024-08-20
• Swept under the rug, say — 2024-07-13
• Redacted, say — 2024-06-14
• Kept out of sight — 2024-03-19
• Stashed away — 2024-02-18
• Went undercover — 2023-11-08
• Stashed — 2023-08-13
• Didn't seek, say — 2023-03-17
• Prepared for a surprise party, in a way — 2022-09-07
• Palmed, say — 2022-03-12
• Squirreled away — 2022-02-24
• Placed so as not to be found — 2020-10-12
• Took cover — 2019-05-22
• Blocked from view — 2019-02-23
• Put under wraps — 2018-12-05
• Stashed away — 2018-08-14
• Holed up — 2018-02-28
• Concealed — 2017-11-27
• Secreted — 2017-10-16
• Put away — 2016-08-05
• Concealed — 2016-04-20
• Went underground — 2016-01-20
• Camouflaged — 2015-11-15
• Withheld — 2015-07-11
• Secreted — 2015-07-03
• Tucked away — 2015-01-10
• Veiled — 2014-04-03
• Concealed — 2013-10-28
• Went undercover — 2013-10-27
• Camouflaged — 2013-09-25
• Stashed away — 2013-02-26
• Lay low — 2011-07-15
• Concealed — 2010-09-28
• Wasn't a seeker? — 2010-04-10
• Went undercover — 2009-10-11
• Went underground — 2009-09-30
• Stayed out of sight — 2008-11-10
• Covered up — 2008-09-07
• Shaded — 2007-04-06
• Holed up — 2007-01-03
• Obscured — 2005-10-16