 Complete the following phrase:  Historically, Gliwice was ethnically diverse, initially inhabited by Poles, later it had a German majority as a result of German colonization, with a significant autochthonous Polish minority. In the Upper Silesian Plebiscite in 1921, 78.9 percent of voters opted for Germany however 15.1 percent of the vote in Gliwice was cast by non-residents, who are believed to overwhelmingly vote for Germany across the region. However, in 1945 most of Germans were expelled or fled themselves, and the city was repopulated with Poles, 