Gregor von Helmersen
1803
-
1885
photo credits: Wikimedia Commons
country of citizenship: Russian Empire
languages spoken, written or signed: German
educated at: Imperial University of Dorpat, Saint Petersburg Mining University, Saint Peter's School
occupation: geologist, explorer, geographer, cartographer, professor
Gregor von Helmersen or Grigory Petrovich Helmersen (Russian: Григорий Петрович Гельмерсен, 11 October [O.S. 29 September] 1803 – 15 February [O.S. 3 February] 1885) was a Baltic German geologist. Source: Wikipedia (en)
Human - wd:Q67676