Silesian Voivodeship pre-WW2 and today

[Peterski]

Modern Silesian Voivodeship is much larger than its pre-WW2 counterpart (green area in the map below).

Some eastern parts of pre-WW2 German Upper Silesia were added to it, but also some Non-Silesian neighbouring areas, including Częstochowa, Żywiec and Dąbrowa Coal Basin (including Sosnowiec), have been added to it. On other hand, part of Czech Silesia west of Cieszyn with mostly Polish population - so called Zaolzie - added to it in 1938, was later lost after WW2:



Western part of Upper Silesia, as well as eastern strip of Lower Silesia (area of Brzeg), now form Opole Voivodeship:





Thick pink line shows borders of Oppeln region, German Upper Silesia (it didn't include Brieg/Brzeg) in 1921-1939:

[Bobby Martnen]

Time for Masha and her people to return Zaolzie.

[Peterski]

(...)

Actually, the Duchy of Siewierz is also part of historical Silesia:

https://en.wikipedia.org/wiki/Duchy_of_Siewierz





Historical Lands of Ostrzeszów, Wieluń and Wschowa, were only very briefly ruled by Silesian Piasts:

https://en.wikipedia.org/wiki/Ostrzesz%C3%B3w

https://en.wikipedia.org/wiki/Wielu%...of_Wielu%C5%84

Later on, it was ruled by the Dukes of Silesia from the Duchy of Opole, and in the second half of the 13th century, returned to Greater Poland. (...) In 1370, following the last will of Casimir the Great, King Louis I of Hungary handed the Land of Wieluń to Duke of Opole, Władysław Opolczyk. In the same period, the Archbishop of Gniezno, Jarosław of Bogoria and Skotnik built a manor house in Wieluń. The town remained in the hands of Władysław Opolczyk until 1395, when it was returned to the Kingdom of Poland.

https://en.wikipedia.org/wiki/Wschowa_Land

Land of Wschowa was annexed into Poland by King Kazimierz Wielki in 1343. Before that, it had been ruled by the dukes of Glogow.

Oświęcim & Zator were originally Lesser Polish, then ruled by Silesian Piasts, then back to Lesser Poland:

https://en.wikipedia.org/wiki/Duchy_...%9Bwi%C4%99cim

https://en.wikipedia.org/wiki/Duchy_of_Zator

The Land of Częstochowa was also originally Lesser Polish but ruled by Silesian Piasts for some time:

https://en.wikipedia.org/wiki/Cz%C4%99stochowa#History

However, Częstochowa was always important for Silesians, so they called their town in Texas after it:

https://en.wikipedia.org/wiki/Cestohowa,_Texas

^^^
It is, together with Panna Maria and with Saint Hedwig, one of towns established by Texas Silesians: