The members of the Greenland expedition before departure. Front row from the left side: Fridtjof Nansen), the expedition leader; Oluf Christian Dietrichson, lieutenant, assistant teacher of physical education and the use of arms. In the back row from the left: Ole (Nielsen) Ravna, Norwegian Sami, Otto Neumann Knoph Sverdrup, captain, Kristian Kristiansen (Trana), forest worker, Samuel (Johansen) Balto), Norwegian Sami. One of the pictures from the expedition to Greenland in the period July 1888 to May 1889. Fridtjof Nansen together with 5 other Norwegian participants crossed Greenland in the course of a 42-day skiing trip from the east to the west coast.