History
The result originated in Euclid's Elements, where solids are called equal if the same holds for their faces. This version of the result was proved by Cauchy in 1813 based on earlier work by Lagrange. A technical mistake was found by Steinitz in 1920's and later corrected by him (1928) and Alexandrov (1950). A definitive modern version of the proof was given by Stoker (1968).
Read more about this topic: Cauchy's Theorem (geometry)
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