 They chose Olsztyn based on the fact that most of the Vilnius board of education where Feliks once worked had been evacuated to Olsztyn, and Feliks could resume his position there.Following World War II, Sikorski's mother was prevented from teaching due to political persecution.After Sikorski graduated from high school in 1953, he was repeatedly denied entry to university in spite of passing exams in Gdańsk, Warsaw, Toruń, and Poznań.