Question: When did the person that helped van Vleck develop CFT die?
Sentence (from "Hans Bethe"): Hans Albrecht Bethe (] ; July 2, 1906 – March 6, 2005) was a German and American nuclear physicist who, in addition to making important contributions to astrophysics, quantum electrodynamics and solid-state physics, won the 1967 Nobel Prize in Physics for his work on the theory of stellar nucleosynthesis.
Relevant evidence: Yes