Silesia (Schlesien) Historical Geography

Here is a link to the historical geography of Silesia. The article is in German. To get a translation, hitlite the URL, go to Google translations tools, choose translate a website, enter the URL, choose German to English and read a very interesting account of Silesia's geographic history.

Here is a link giving the "Kreise" in Oberschlesien.

http://wapedia.mobi/de/Schlesien

Another link for historical events can be found here http://www.boehm-chronik.com/forschung/boehmsche-zeittafel.htm