Well, when I was at university studying physics, it became obvious that in the earlier part of the 1900s, Germany was THE centre of science.
Max Born, Einstein, Gerlach, Geiger, Heisenberg, Hertz, Max von Laue, Lenard, Planck. Oh and not forgetting Roentgen....there must be loads more that I forget.
Quantum Mechanics was basically born in Germany