A comment I saw yesterday talked about Japanese expeditions during the 1930s looking for some sort of primordial "master race" that spawned the Japanese. What did Japanese racial theory look like during the 1930s and what was its relationship with German racial theory?

by Xxxn00bpwnR69xxX
ShroomBoy69

Follow up: If they did find something, did anything take place on the Homeland and other territory's?

Satanic_Doge

Another follow up: When did Japanese ideas of them being a kind of "master race" develop? Are they a 20th century/post-social-darwinism phenomenon or does it go back further? How did Japanese racial superiority ideas compare/contrast with those of the Germans?