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Nov 20, 2016 at 20:50 vote accept John Jiang
Jan 4, 2012 at 6:24 vote accept John Jiang
May 5, 2012 at 3:01
Jan 4, 2012 at 6:14 answer added Anton Petrunin timeline score: 5
Jan 4, 2012 at 3:49 history asked John Jiang CC BY-SA 3.0