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May 3, 2013 at 22:05 vote accept sparrowhawker
May 3, 2013 at 19:29 answer added Anton Petrunin timeline score: 1
May 3, 2013 at 19:26 answer added Joseph O'Rourke timeline score: 1
May 3, 2013 at 19:04 history asked sparrowhawker CC BY-SA 3.0