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THE DAY IN HISTORY · MARCH 20

March 20 in history

What happened on March 20: 1 moment from the Maps of History atlases, in 1921, each linked to the map that shows it.

— Upper Silesia plebiscite

20 Mar 1921 — About 60 per cent of voters choose Germany, but the result divides district by district, Polish insurgents rise in May, and in October the League splits the region, giving Poland most of the coal mines and steelworks. Each side calls the outcome unjust.

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