The book "Der Eskimo" was written by an explorer born in which year ?
Peter Freuchen Lorenz Peter Elfred Freuchen (February 2, 1886 – September 2, 1957) was a Danish explorer, author, journalist and anthropologist. He is notable for his role in Arctic exploration, especially the Thule Expeditions.
Bernhard Grzimek Bernhard Klemens Maria Grzimek (] ; 24 April 1909 – 13 March 1987) was a renowned German zoo director, zoologist, book author, editor, and animal conservationist in postwar West-Germany.