300 years ago, a German scientist named Johann Friedrich Blumenbach studied Finnish skulls.
To survive the extreme Finnish winters, Finns evolved higher cheekbones and relatively flatter faces than other Europeans.
Germans, on the other hand, have much less prominent cheekbones than Europeans.
Blumenbach concluded that Finns are not white but mongols from central asia, just simply because Finns have high cheekbones.
This faux race science was widely accepted by Germans who were jealous of Finnish cheekbones, and was adopted by Hitler as well.
Hitler classified Finland as a non-white, non-Germanic nation, but thought that Finnish cultural achievements were equal to Germanic achievements. So he considered Finland to be honorary Aryan, along with Japan.
In early 1900s, delusional Finnish scientists started to claim that Finns are actually white, and their high cheekbones are due to Cro-magnon hunter heritage.
In late 20th century, Sup Forums, a website dedicated to Christianity and Nazism, adopted Hitler's definition of race, and concluded that Finns are Mongols, not white.
