Fridtjof Nansen particularly in the polar regions. The Nansen family originated in Denmark. Hans Nansen (1598–1667), a trader, was an early explorer of the White Sea region of the Arctic Ocean. In later life he settled in Copenhagen, becoming the city's "borgmester" in 1654. Later generations of the family lived in Copenhagen until the mid-18th century, when Ancher Antoni Nansen moved to Norway (then in a union with Denmark). His son, Hans Leierdahl Nansen (1764–1821), was a magistrate first in the Trondheim district, later in Jæren. After Norway's separation from Denmark in 1814, he entered national political life as the representative for
Nansen passport Nansen passport Nansen passports, originally and officially stateless persons passports, were internationally recognized refugee travel documents from 1922 to 1938, first issued by the League of Nations to stateless refugees. They quickly became known as "Nansen passports" for their promoter, the statesman and polar explorer Fridtjof Nansen. The end of World War I saw significant turmoil, leading to a refugee crisis. Numerous governments were toppled, and national borders were re-drawn, often along generally ethnic lines. Civil war broke out in some countries. Many people left their homes because of war or persecution or fear thereof. The upheaval resulted in many