Gregor von Helmersen
Estonian geologist
Died when: 81 years 127 days (976 months)Star Sign: Libra
Gregor von Helmersen or Grigory Petrovich Helmersen (Russian: ???????? ???????? ??????????, 11 October [O.S. 29 September] 1803 – 15 February [O.S. 3 February] 1885) was a Baltic German geologist.
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