Original sentence: Because of its rich history the region has produced a unique cultural mix based on the local Silesian elements with heavy Polish, Czech and German influences.History of Silesia is connected with history of the three nations and countries: Poland, Bohemia and Germany.Silesia (Silesian: Ślonsk, Ślunsk, Polish: Śląsk, German: Schlesien, Czech: Slezsko) is a province in south-western Poland and the northe-eastern Czech Republic, located along the upper and middle Odra Oder/Odra river.The small portion in the Czech Republic is joined with northern Moravia to form the Moravian-Silesian Region (or Ostravski Kraj) of that country, while the Görlitz area now is a part of the German state of Saxony.Today the region is inhabited by the Poles, Silesians, Germans, Czechs and Moravians
Edited sentence: After World War II most of Silesia became Polish, when the German population were expelled and replaced by Poles expelled from former Kresy.Most of Silesia was part of the German provinces Upper- and Lower Silesia before 1945, and the majority of the population were German.Silesia (Polish Śląsk, German Schlesien, Czech Slezsko) is an historical region in east-central Europe, located along the upper and middle Oder/Odra River, in what is now southwestern Poland and with parts in Germany and the Czech Republic.The historical region belonged to Poland in the middle ages.The small portion in the Czech Republic is joined with Moravia to form the Moravian-Silesian Region of that country, while the Görlitz area now is a part of the German state of Saxony.Ties with Poland were weakening over time, while ties with Germany were increasing