Nansen passports are internationally recognized identity cards first issued by the League of Nations to stateless refugees. Invented in 1922 by Fridtjof Nansen, it was eventually honored by governments in 52 countries.
All Wikipedia text
is available under the
terms of the GNU Free Documentation License
Search Encyclopedia
Search over one million articles, find something about almost anything!
... the quadratic equation, because it discriminates between three qualitatively different cases:
If the discriminant is zero, then there is a repeated solution x, and thi ...