Historical clue formulations

• Sit 'n spin? — 2020-07-04
• Turn while seated — 2014-11-23
• Spin, as an office chair — 2013-10-01
• Eames lounge chair feature — 2011-01-22
• Turn 90 degrees, say — 2010-06-06
• Feature of many an office chair — 2008-04-02
• Turn — 2004-04-13
• Turn in a chair — 2001-07-30