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Earn at least 400 total score for at least 80 non-community wiki answers in the mathematics tag.
Awarded 6 times.
Awarded Oct 5 at 13:30 to
Awarded Jun 9 at 15:09 to
Awarded Mar 11, 2021 at 4:00 to
Awarded Feb 19, 2019 at 14:49 to
Awarded Oct 10, 2018 at 4:00 to
Awarded Dec 12, 2016 at 4:01 to