Biellmann spin
No one knows who invented the spin. Cecilia Colledge of Great Britain performed a one-handed Biellmann spin in 1937. There is a famous photograph of her doing the spin at the 1937 World Figure Skating Championships. Tamara Moskvina of the Soviet Union performed the spin at the 1965 European Championships and there is a famous photo of her doing it as well. Both Janet Champion and Slavka Kohout of the United States performed this spin early on.