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the axel definitely because it is 1 1/2 rotations. The lutz and salchow are both 1 rotation.
Boris Salchow's birth name is Boris Christian Salchow.
Kelly Salchow was born in 1973.
An axel-lutz is much harder than a salchow. A salchow is learned before even a half lutz, and an axel is about two freestyle levels above the salchow.
Ulrich Salchow was born on August 7, 1877.