William Hutton (Altered headword; set status) on 24 October 2000@11:41:18. David Whitehead (modified headword) on 29 April 2002@07:37:49. David Whitehead (augmented notes and keywords; cosmetics) on 6 January 2012@05:25:15. David Whitehead on 19 August 2013@04:13:53. David Whitehead (my typo) on 9 April 2015@09:11:05.