Historical clue formulations

• Where Mandela and Nehru worked on their autobiographies — 2025-07-18
• Holding areas in Capture the Flag — 2023-05-14
• Puts away — 2020-10-09
• Locks up — 2018-02-04
• Prisons — 2016-10-24
• Sends to the lockup — 2015-03-02
• Solitary places — 2012-05-19
• Prisons — 2011-02-28
• Clinks — 2009-07-29
• Locks up — 2006-10-25
• Puts in a can? — 2006-03-22
• Puts behind bars — 2006-02-27
• Pens — 2003-08-16
• Puts behind bars — 2002-02-11
• Incarcerates — 1996-05-22