Historical clue formulations

• Wings — 2017-11-30
• Adds — 2015-03-22
• Wings — 2012-12-08
• Takes over — 2010-08-21
• Extensions — 2010-02-23
• Takes over — 2008-07-31
• Wings — 2001-12-14
• Adds on — 1999-11-23
• Some wings — 1999-09-04
• Additions at school? — 1998-04-05