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Śląsk Cieszyński
Tag
(04)
1918
October
19
National Council of the Duchy of Cieszyn
On 19 October 1918 Polish activists in Cieszyn set up the National Council of the Duchy of Cieszyn to join this part of Austria to the reborn Poland.
November
05
Polish-Czech agreement on Cieszyn Silesia
On 5 November 1918 the Polish and Czech national councils split Cieszyn Silesia provisionally. Most of it, with Cieszyn and Bielsko, came under Polish rule.
1919
January
23
Czechoslovakia attacks Cieszyn Silesia
On 23 January 1919 Czechoslovak troops crossed the line of 5 November and struck at the Polish part of Cieszyn Silesia. The Seven-Day War had begun.
1920
July
28
Division of Cieszyn Silesia
On 28 July 1920 the Conference of Ambassadors split Cieszyn Silesia along the Olza with no plebiscite. Czechoslovakia got the Karviná coalfield and Třinec.