Spaced repetition: Revision history

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Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.

18 January 2020

13 June 2018

21 March 2018

26 February 2018

31 October 2017

12 April 2015

23 February 2013

7 June 2009