Historical clue formulations

• "Is there no ___ this?" — 2016-04-12
• Put an ___ — 2013-03-02
• "Is there no ___ this?" — 2007-05-01
• Words after "put an" or "see no" — 2006-11-05
• Put an ___ (halt) — 2006-06-12
• Put an ___ — 2003-09-07
• Put an ___ — 2002-06-21
• Put an ___ (halt) — 2001-02-12
• Put an ___ (stop) — 2000-01-03
• Put an _____ (stop) — 1995-10-03
• Put an _____ (halt) — 1994-04-17