Fridtjof Wedel-Jarlsberg Nansen (Norwegian: [ˈfrɪ̂tːjɔf ˈnɑ̀nsn̩]; 10 October 1861 – 13 May 1930) was a Norwegian polymath and Nobel Peace Prize laureate. He gained prominence at various points in his life as an explorer, a scientist, a diplomat, a humanitarian, and the co-founder of the Fatherland League.
He led the team that made the first crossing of the Greenland interior in 1888, traversing the island on cross-country skis. He won international fame after reaching a record northern latitude of 86°14′ during his Fram expedition of 1893–1896. Although he retired from exploration after his return to Norway, his techniques of polar travel and his innovations in equipment and clothing influenced a generation of subsequent Arctic and Antarctic expeditions. He was elected an International Member of the American Philosophical Society in 1897.