Thanks for the article! Great and clear as always :)
A small history fact check though, if I may. The city of Königsberg did not become Kaliningrad with the collapse of Prussia (or rather German Empire), but only after the end of the World War 2.
The entire German population either left with the retreating German troops or was later deported by the Soviets, and so the region became part of Soviet Russia and was eventually completely Russified.
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