Mack, The argument with Manderup Parsbjerg was stated to be over Fermat's Next-to-Last Theorem, which speculates that 2 + 2 = 5 for very large values of 2. (although I do not get this myself, if I could somehow make $2 + $2 =$5 then I could make more money huh?) There is also speculation that it was over a simple matter of who was the better mathematician. Also when his body was exhumed in 1901 there was evidence of copper in the metal due to the green rim found on the opening of the skull where the nose had been.