Claim: Jacek Sawaszkiewicz (September 10, 1947 – June 11, 1999) was a European science fiction writer, he made his debut with a story Sanatorium and wrote the novel Sukcesorzyin 1979.
Evidence: Jacek Sawaszkiewicz (September 10, 1947 – June 11, 1999) was a Polish science fiction writer, satirist, also a contributor to satirical magazine Karuzela and Polish radio broadcast Polskie Radio Szczecin. Poland (Polish: Polska [ˈpɔlska (listen)), officially the Republic of Poland (Polish: Rzeczpospolita Polska [ʐɛt͡ʂpɔˈspɔlita ˈpɔlska (listen)), is a country located in Central Europe. He made his debut with a story Sanatorium (Karuzela 1972). (1979) Sukcesorzy (Wydawnictwo Poznańskie)