Now, may be I'm wrong,
and indeed need some illumination on this, Yet:
Nobel always cite the WILL of Late Mr. Alfred Nobel; and it seems, one sentence that makes the terms both impossible condition & contradictory, and that seems to have been also modified by the executors as well, without being explicitly mentioned and signed by the testator w.r.t. modification; and that is, to execute the WILL: during the ‘preceding’ year, have conferred the greatest benefit to humankind…..for….Important Discovery OR Invention in: Physics, Chemical, Physiology/Medicine, Literature (outstanding work in Idealistic direction), Abolition reduction of standing armies/establishment and promotion of peace congresses/advance fellowship among the nations.