1 mar 1921 ano - Plebiscite to decide future of upper Silesia

Descrição:

Upper Silesia was disputed by Poland and Germany for a number of reasons including:
❖
As a result of the Paris Peace Settlement, the boundaries of many countries were redrawn.
❖
Upper Silesia was on the border of Germany and Poland and both nationalities lived there, which caused conflict.
❖
It was also an important area for iron and steel production. Both countries wanted to make a claim on this.

Adicionado na linha do tempo:

Data: